Make a SPLEEN specimen preparation protocol transmission electron.pdf
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Make a SPLEEN specimen preparation protocol transmission electron microscope, using the method of fixation by immersion (human tissue) Make a SPLEEN specimen preparation protocol transmission electron microscope, using the method of fixation by immersion (human tissue) Solution The prOtocol steps are as below:.
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An event and its complement are mutually exclusive. True False.pdf
An event and its complement are mutually exclusive. True / False
Solution
Yes, it is true. [answer]
Mutually exclusive events don\'t have anything in common. The complement of an event is
everything that is not in that event. Thus, they have nothing in common.
Hence, TRUE: THEY ARE MUTUALLY EXCLUSIVE..
Assume that the repulsive potential energy of an ion-pair in an ioni.pdf
Assume that the repulsive potential energy of an ion-pair in an ionic crystal arises because of the
action of the pauli exclusion principle and that it can be expressed as
Urep = B/ rn where r is the separation between the ions of opposit sign, n is a large number and
B is a constant of the crystal.
Solution
Please define the problem..
A precise definition of globalization is difficult, because globaliz.pdf
A precise definition of globalization is difficult, because globalization is a process which
removes economic, social and cultural boundaries of nation states. Discuss this process. Do you
think that globalization is a win-win situation for all countries? You may argue in favor of or
against this view.
Solution
Globalization is a process of interaction and integration among the people, companies, and
governments of different nations, a process driven by international trade and investment and
aided by information technology.
Globalization is defined as a process which integrates the world economy. It is a process which
removes economic, social and cultural bindings.
Globalization is a complex and multifaceted phenomenon. It is the process of
internationalintegration as a product of exchange of world views, products, ideas and other
aspects of culture in which worldwide exchange of national and cultural resources occurs in the
process.Many factors contributed for the growth of globalization major being advancement
intransportation and communication. The current wave of globalization is nothing but the
resultof Schumpeterian evolution in technology along with interaction of many actors at
differentlevels of the economy. Globalization means different for different people. For some it
createspositive political, economic and technological progress. For few globalization is
hegemonic andantagonist to local and national economies. Globalization has changed situations
in such amanner that power of state is determined by power of firm. If the goal of globalization
wasmore liberal exchange of goods, services, labor, thoughts etc which in later stages would
makeworld uniform, then there is no space for identity.
There are positive aspects for cultural globalization that will foster diversity when there is
aninteraction between boundaries leads to mixing of culture which results in pluralization.
Thereis condensation and differentiation on ideas which brought many unique aspects of
certainculture into lime light. The concept of glocalization has gained popularity which would
help inimproving standards of life, without hampering the local tradition. Diversity itself has
become aglobal value now which is been promoted by international organizations and
movements.
Globalization is not a debate aboutdivergence or convergence, but it is a dialectical process
which can both integrate and fragmentalong with creating both winners and losers.
I do not think that globalization is a win win situation for all countries and even if it is at least
winning amount is different for each country. not all countries are gaining equally from
globalization and some countries especially labour abundant countires like India are at loss as
there is no freedom of human capital transfer in globalization process.
Globalization is thus an ongoing syndrome. Globalization is not only about interplays
betweenlocal, regional, national and global scales, but also about the interconnectedn.
Pnc po,B F2 no,C MO, E Solution BJT in active mode means EB Junc.pdf
Pnc po,B F2 no,C MO, E
Solution
BJT in active mode means EB Junction is forward biased and CB juction is reverse biased.
Since EBJ is forward biased, the depletion width is smaller thean CBJ depletion width (which is
reverse biased). Let us consider the electrons injected from the emitter into the base. These
electrons will be minority carrier in the p-type base regrion. Because the base is usually very
thin, in the steady state the excess minority carrier concentration in the base will have an almost
straight-line profile. This tapered minority-carrier concentration profile causes the electrons
injected into the base to diffuse though the base region toward the collector. The Collector-Base
juction is reverse biased so the minority carrier concentration profile can be constant in collector..
Which one of the following experiments demonstrates the nature of el.pdf
Which one of the following experiments demonstrates the nature of electrons? Which one of the
following experiments demonstrates the wave nature of electrons? a) Small flashes of light can
be observed when electrons strike a special screen. b) Electrons directed through a double slit
can produce an interference pattern. c) The Michelson-Morley experiment confirmed the
existence of electrons and their nature. d) In the photoelectric effect, electrons are observed to
interfere with electrons in metals. e) Electrons are observed to interact with photons (light
particles).
Solution
part B.
a.) Describe a difference between the RNA polymerases of eukaryotes .pdf
a.) Describe a difference between the RNA polymerases of eukaryotes and prokaryotes.
b.) Which of the following enzymes are known to be involved in the replication of DNA in
bacteria?
Check all that apply.
DNA Polymerase I
RNA Polymerase II
DNA Polymerase II
RNA primase
ligase
Solution
Thanks for the question
Prokaryotic transcription occurs in the cell cytoplasm and, in prokaryotes, both transcription and
translation happen simultaneously. Eukaryotic transcription occurs in the cell nucleus and, in
eukaryotes, transcription and translation differ in space and time. RNA polymerases are an
essential requirement for transcription.
Eukaryotic cells are more complex than bacteria in many ways, including in terms of
transcription. Specifically, in eukaryotes, transcription is achieved by three different types of
RNA polymerase (RNA pol I-III).
These polymerases differ in the number and type of subunits they contain, as well as the class of
RNAs they transcribe
RNA pol I transcribes ribosomal RNAs (rRNAs),
RNA pol II transcribes RNAs that will become messenger RNAs (mRNAs) and also small
regulatory RNAs
RNA pol III transcribes small RNAs such as transfer RNAs (tRNAs).
Replication of DNA in bacteria requires
DNA Polymerase I
DNA Polymerase II
RNA primase
ligase
Regards.
In the past several years the number of harmful algal blooms has been.pdf
In the past several years the number of harmful algal blooms has been dramatically increasing.
In fact, a recent bloom of Microcystis aeruginosa, known for its secretion of the hepatotoxin
microcystin, has threatened the water supply of Lake Erie cities such as Toledo and Cleveland.
An EPA friend wishes to study this species in order to prevent such blooms, and in so doing,
finds significant heterogeneity in gene expression in clonal algal cells (same species, identical
DNA) in the same environment! There is one order of magnitude of variation in certain
transcription factors and two orders of magnitude of variation in lipid content. Recognizing your
expertise your friend asks you for advice: Is this result reasonable or was this likely due to
experimental error? How would one go about testing and explaining the results? Provide an
answer to your colleague.
Solution
To study gene expression , since a long time, Microarray technology is being used in order to
study more number of genes in a single experiment. This is then interpreted using significance
analysis of transcriptomic data, but the disadvantage here lies that it would ignore gene
dependence structure. Therefore , along with microarray technology for studying heterogeneity,
FAMT would allow to capture gene dependence as a factor of computation of results.
FAMT: Factor Analysis for Multiple Testing (FAMT) : is defined as simultaneous tests under
dependence in high-dimensional data. It takes into account various factors to give high
throughput data and accurate results. In FAMT, effects of the experimental conditions and the
nuisance variability on gene expression, due to technical errors and other known or unknown
effects, can be easily separated. The factors can be distinguished and interpreted using graphics.
I am not aware of what protocol was followed by my colleague. Neither am I aware if the
interfering signals were cancelled by the protocol followed. So rather, I would suggest to
perform microarray for testing gene heterogeneity and interpreting the results using FAMT, so as
to eliminate all sorts of interfering signals/ factors and also handling errors , if some. Results can
be interpreted later after elimination of any error possibilities..
What is the difference between a short and long branchSolution.pdf
What is the difference between a short and long branch?
Solution
long branch is a form of systematic error whereby distantly related lineages are incorrectly
inferred to be closely related. LBA arises when the amount of molecular or morphological
change accumulated within a lineage is sufficient to cause that lineage to appear similar (thus
closely related) to another long-branched lineage, solely because they have both undergone a
large amount of change, rather than because they are related by descent. Such bias is more
common when the overall divergence of some taxa results in long branches within a phylogeny.
Long-branches are often attracted to the base of a phylogenetic tree, because the lineage included
to represent an outgroup is often also long-branched. The frequency of true LBA is unclear and
often debated. Although often viewed as a failing of parsimony-based methodology, LBA can
result from a variety of scenarios
Long branch effects distort maximum.
Recommended
An event and its complement are mutually exclusive. True False.pdf
An event and its complement are mutually exclusive. True / False
Solution
Yes, it is true. [answer]
Mutually exclusive events don\'t have anything in common. The complement of an event is
everything that is not in that event. Thus, they have nothing in common.
Hence, TRUE: THEY ARE MUTUALLY EXCLUSIVE..
Assume that the repulsive potential energy of an ion-pair in an ioni.pdf
Assume that the repulsive potential energy of an ion-pair in an ionic crystal arises because of the
action of the pauli exclusion principle and that it can be expressed as
Urep = B/ rn where r is the separation between the ions of opposit sign, n is a large number and
B is a constant of the crystal.
Solution
Please define the problem..
A precise definition of globalization is difficult, because globaliz.pdf
A precise definition of globalization is difficult, because globalization is a process which
removes economic, social and cultural boundaries of nation states. Discuss this process. Do you
think that globalization is a win-win situation for all countries? You may argue in favor of or
against this view.
Solution
Globalization is a process of interaction and integration among the people, companies, and
governments of different nations, a process driven by international trade and investment and
aided by information technology.
Globalization is defined as a process which integrates the world economy. It is a process which
removes economic, social and cultural bindings.
Globalization is a complex and multifaceted phenomenon. It is the process of
internationalintegration as a product of exchange of world views, products, ideas and other
aspects of culture in which worldwide exchange of national and cultural resources occurs in the
process.Many factors contributed for the growth of globalization major being advancement
intransportation and communication. The current wave of globalization is nothing but the
resultof Schumpeterian evolution in technology along with interaction of many actors at
differentlevels of the economy. Globalization means different for different people. For some it
createspositive political, economic and technological progress. For few globalization is
hegemonic andantagonist to local and national economies. Globalization has changed situations
in such amanner that power of state is determined by power of firm. If the goal of globalization
wasmore liberal exchange of goods, services, labor, thoughts etc which in later stages would
makeworld uniform, then there is no space for identity.
There are positive aspects for cultural globalization that will foster diversity when there is
aninteraction between boundaries leads to mixing of culture which results in pluralization.
Thereis condensation and differentiation on ideas which brought many unique aspects of
certainculture into lime light. The concept of glocalization has gained popularity which would
help inimproving standards of life, without hampering the local tradition. Diversity itself has
become aglobal value now which is been promoted by international organizations and
movements.
Globalization is not a debate aboutdivergence or convergence, but it is a dialectical process
which can both integrate and fragmentalong with creating both winners and losers.
I do not think that globalization is a win win situation for all countries and even if it is at least
winning amount is different for each country. not all countries are gaining equally from
globalization and some countries especially labour abundant countires like India are at loss as
there is no freedom of human capital transfer in globalization process.
Globalization is thus an ongoing syndrome. Globalization is not only about interplays
betweenlocal, regional, national and global scales, but also about the interconnectedn.
Pnc po,B F2 no,C MO, E Solution BJT in active mode means EB Junc.pdf
Pnc po,B F2 no,C MO, E
Solution
BJT in active mode means EB Junction is forward biased and CB juction is reverse biased.
Since EBJ is forward biased, the depletion width is smaller thean CBJ depletion width (which is
reverse biased). Let us consider the electrons injected from the emitter into the base. These
electrons will be minority carrier in the p-type base regrion. Because the base is usually very
thin, in the steady state the excess minority carrier concentration in the base will have an almost
straight-line profile. This tapered minority-carrier concentration profile causes the electrons
injected into the base to diffuse though the base region toward the collector. The Collector-Base
juction is reverse biased so the minority carrier concentration profile can be constant in collector..
Which one of the following experiments demonstrates the nature of el.pdf
Which one of the following experiments demonstrates the nature of electrons? Which one of the
following experiments demonstrates the wave nature of electrons? a) Small flashes of light can
be observed when electrons strike a special screen. b) Electrons directed through a double slit
can produce an interference pattern. c) The Michelson-Morley experiment confirmed the
existence of electrons and their nature. d) In the photoelectric effect, electrons are observed to
interfere with electrons in metals. e) Electrons are observed to interact with photons (light
particles).
Solution
part B.
a.) Describe a difference between the RNA polymerases of eukaryotes .pdf
a.) Describe a difference between the RNA polymerases of eukaryotes and prokaryotes.
b.) Which of the following enzymes are known to be involved in the replication of DNA in
bacteria?
Check all that apply.
DNA Polymerase I
RNA Polymerase II
DNA Polymerase II
RNA primase
ligase
Solution
Thanks for the question
Prokaryotic transcription occurs in the cell cytoplasm and, in prokaryotes, both transcription and
translation happen simultaneously. Eukaryotic transcription occurs in the cell nucleus and, in
eukaryotes, transcription and translation differ in space and time. RNA polymerases are an
essential requirement for transcription.
Eukaryotic cells are more complex than bacteria in many ways, including in terms of
transcription. Specifically, in eukaryotes, transcription is achieved by three different types of
RNA polymerase (RNA pol I-III).
These polymerases differ in the number and type of subunits they contain, as well as the class of
RNAs they transcribe
RNA pol I transcribes ribosomal RNAs (rRNAs),
RNA pol II transcribes RNAs that will become messenger RNAs (mRNAs) and also small
regulatory RNAs
RNA pol III transcribes small RNAs such as transfer RNAs (tRNAs).
Replication of DNA in bacteria requires
DNA Polymerase I
DNA Polymerase II
RNA primase
ligase
Regards.
In the past several years the number of harmful algal blooms has been.pdf
In the past several years the number of harmful algal blooms has been dramatically increasing.
In fact, a recent bloom of Microcystis aeruginosa, known for its secretion of the hepatotoxin
microcystin, has threatened the water supply of Lake Erie cities such as Toledo and Cleveland.
An EPA friend wishes to study this species in order to prevent such blooms, and in so doing,
finds significant heterogeneity in gene expression in clonal algal cells (same species, identical
DNA) in the same environment! There is one order of magnitude of variation in certain
transcription factors and two orders of magnitude of variation in lipid content. Recognizing your
expertise your friend asks you for advice: Is this result reasonable or was this likely due to
experimental error? How would one go about testing and explaining the results? Provide an
answer to your colleague.
Solution
To study gene expression , since a long time, Microarray technology is being used in order to
study more number of genes in a single experiment. This is then interpreted using significance
analysis of transcriptomic data, but the disadvantage here lies that it would ignore gene
dependence structure. Therefore , along with microarray technology for studying heterogeneity,
FAMT would allow to capture gene dependence as a factor of computation of results.
FAMT: Factor Analysis for Multiple Testing (FAMT) : is defined as simultaneous tests under
dependence in high-dimensional data. It takes into account various factors to give high
throughput data and accurate results. In FAMT, effects of the experimental conditions and the
nuisance variability on gene expression, due to technical errors and other known or unknown
effects, can be easily separated. The factors can be distinguished and interpreted using graphics.
I am not aware of what protocol was followed by my colleague. Neither am I aware if the
interfering signals were cancelled by the protocol followed. So rather, I would suggest to
perform microarray for testing gene heterogeneity and interpreting the results using FAMT, so as
to eliminate all sorts of interfering signals/ factors and also handling errors , if some. Results can
be interpreted later after elimination of any error possibilities..
What is the difference between a short and long branchSolution.pdf
What is the difference between a short and long branch?
Solution
long branch is a form of systematic error whereby distantly related lineages are incorrectly
inferred to be closely related. LBA arises when the amount of molecular or morphological
change accumulated within a lineage is sufficient to cause that lineage to appear similar (thus
closely related) to another long-branched lineage, solely because they have both undergone a
large amount of change, rather than because they are related by descent. Such bias is more
common when the overall divergence of some taxa results in long branches within a phylogeny.
Long-branches are often attracted to the base of a phylogenetic tree, because the lineage included
to represent an outgroup is often also long-branched. The frequency of true LBA is unclear and
often debated. Although often viewed as a failing of parsimony-based methodology, LBA can
result from a variety of scenarios
Long branch effects distort maximum.
What are the methods, mechanisms, and types of media by which German.pdf
What are the methods, mechanisms, and types of media by which Germany youth, including
Heck, are socialized and indoctrinated under National Socialism?
Solution
German peopel resepects their nation much and they believe in their system. they are basically
true lovers of their nation and they works together to achieve national goals. they always give
first priority to national goals and later personal benefits. they thinks that all are equal in the
nation and every one should get the same facilities and same treatment from society or
government also.
there are different types of media where the young people use to promote the national previlage
and priorities. they used social media sites like twitter, facebook and also they use the support of
print media.
the other media is telecast and broad cast media, by using all these types of media German youth
are implementing their national socilism..
VHDL programming assignmentwrite functions for each of the follow.pdf
VHDL programming assignment:
write functions for each of the following purpose:
a function that takes in an array of integers and returns the average of the numbers in that array.
this array has a dynamic size.inside this function u cannot declare any variables or signals and
you are only permitted to use the inputs and the outputs. the function must hold the following
form:
Solution
for ( i=1;i=1to 10;i++)
i = 1 2 3 4 5 6 7 8 9 10
AVG= (I=1 to 10)
AVG(int i=1.
This is a Physiology qquestion. Describe the two general meanings of.pdf
This is a Physiology qquestion. Describe the two general meanings of the term membrane, as
used in biology. Which usage indicates layers of cells and which indicates layers of molecules?
Solution
Answer:
Two general meanings of the term \"membrane\" in biology are to describe the structure of cell
membrane that is permeable to some molecules but not all molecules. Second meaning of a
\"membrane in biological cell\" is to protect inner cytoskeleton with organelles. Membrane is
made of phospholipid bilayer in which one is hydrophilic region and another is hydrophobic
region. The phsopholipid layers indicates layers of lipids and membrane proteins whereas the
layers of cells is mainly due to \"membrane associated cell adhesion molecules\"
These three macromolecules together to form a complex phospholipid bilayer in which
periplasmic proteins are distributed in a mosaic manner. The large fluid mosaic structure is
formed from these macromolecules composed of phospholipid bilayers with protein channels for
the transport of organic & inorganic nutrients including trace metal. Normally, the essential
aspects of these structures composed of \"porins, protein channels, integral proteins” that dictate
their function for the selective permeability, diffusion of nutrients across the membrane into &
out of the cell finally to attain homeostasis
Fluid mosaic model describes that two-dimensional liquid layer of cell membrane where proteins
distributed like mosaic model in the phospholipid bilayer. This model mostly accepted by
biologists Role of the protein molecules in this model cell membrane layers are membrane
extracellular protein domains in connection to the lipid bilayer membrane. Membrane
phospholipids are the molecules with hydrophillic polar heads towards the solvent such as water
whereas hydrophobic tail located towards the center of the layer and this bilayer formed by
micelles, as fatty acids possess one polar associated with another nonpolar head. Cell membrane
possesses a property known as selective permeability. Cell membrane consists of phopholipid
bilayer that also include several of the transmembrane proteins, ion channels etc. Small, non-
polar molecules with hydrophobic nature diffuse more easily into the cell membrane. Similarly,
proteins interact and assemble themselves to form several layers of structures in our body..
Type I hypersensitivity is a Th1 type response Th2 type response T.pdf
Type I hypersensitivity is a Th1 type response Th2 type response Th17 type response none of
the above Type III hypersensitivities involve large number of antibody-antigen complexes that
the body is having difficulty clearing up. Which organ is frequently overwhelmed by these
antibody/antigen complexes? liver lymph nodes kidney none the above Mosquito bites can
often result in a swollen skin area around the bite which is red and sore. This reaction is caused
by a saliva protein secreted by the mosquito to avoid clotting of the blood. Which type of
hypersensitivity do mosquitoe bites usually cause? type I type II type III type IV
Solution
13. Answer is Th-2. Type-1 hypersensitivity is a Th-2 response. In this B-lymphocytes are
stimulated by CD4+ or Th-2 cell in response to allergin and produce Ig-E antibodies which bind
to mast cells and execute Type-1 Hypersensitivity
14. Answe is Kidney or Glomarulus. The immune complexs frequently accumulate in Blood
vessels, Joints and kidneys
15. Type-1.
The wide diversity of arthropod body plans can be attributed toQu.pdf
The wide diversity of arthropod body plans can be attributed to:
Question 8 options:
flexibility in metabolism that lets them use a variety of carbon and energy sources
small body sizes that allow individuals to colonize many habitats
mutations in genes that regulate the development of limbs, mouthparts, etc.
acquisition of mitochondria through endosymbiosis of proteobacteria
flexibility in metabolism that lets them use a variety of carbon and energy sources
small body sizes that allow individuals to colonize many habitats
mutations in genes that regulate the development of limbs, mouthparts, etc.
acquisition of mitochondria through endosymbiosis of proteobacteria
Solution
The wide diversity of arthropod body plans can be attributed to : mutations in genes that regulate
the development of limbs ,mouthparts etc..
The sample median is astatisticp-valueresidualparameterA.s.pdf
The sample median is a
statistic
p-value
residual
parameterA.
statisticB.
p-valueC.
residualD.
parameter
Solution
Any number describing a sample in general is
OPTION A: statistic [ANSWER]
****************
A parameter is the second closest answer, but it is for a POPULATION, but we have a sample
here.
P value and residual are far off from the point here. Thanks!.
The main advantage of organizing a business as a C Corporation in th.pdf
The main advantage of organizing a business as a C Corporation in the U.S. is: A) Limited
Liability B) Separation of ownership and managment C) Double taxation D) The relatively low
costs of incorporation versus the other forms of business E) Tax exemption
Solution
Ans option A
Limited liability is the main advantage of organizing a business as a corporation in US
It reduces the risk in case of default.
Single Source Shortest Path Assume that you have a model of a weight.pdf
Single Source Shortest Path Assume that you have a model of a weighted, connected graph made
of balls (representing the vertices) connected by strings (that represent the edges) with lengths
that represent the weighting of that edge. Describe how you can solve the single-source shortest-
path problem with this model.
Solution
-->Hold the ball representing the source in one hand and let the rest of the model hang down.
-->The force of gravity will make the shortest path to each of the other balls be on a straight line
down..
Question 2 Easter Climate Data for Chicago - weather.gov670 × 454Se.pdf
Question 2: Easter Climate Data for Chicago - weather.gov670 × 454Search by image
The following statistics comprises 142 years of data. However snowfall data started in 1885 so it
comprises 130 years. Data collection began at the University of Chicago, then at Midway, and
currently at O\'Hare which is now the official station for Chicago. Explain each of the following
4 charts (High, Low, Precipitation, Snowfall). Include rules, formulas, calculations, results and
interpretations of results. Include additional climate data table in your answer. Demonstrate all
quantitative or qualitative results for each chart (i.e, mean, median, mode, probability, deviation,
range, intervals, width, coefficient variation, boundary points, ROC, measure of location,
measure of spread, arithmetic mean, geometric mean, quantiles, etc.)
Easter Day Data:
A. High Temperatures Data: On Easter day: for 4 years it was <30, for 15 years it was 30-39, for
37 years it was 40-49, for 37 years it was 50-59, for 29 years it was 60-69, 13 years it was 70-79,
7 years it was 80>. The total years measured = 142 years.
B. Low Temperature Data: On Easter day: for 0 years it was <10, for 4 years it was 10-19, for 22
years it was 20-29, for 63 years it was 30-39, for 38 years it was 40-49, for 12 years it was 50-59,
for 3 years it was 60>. The total years measured = 142 years.
C. Precipitation Data: On Easter day: 61 years there was 0.00, 22 years there was trace, 7 years
there was 0.01, 32 years there was 0.02 - 0.25, 8 years there was 0.26 - 0.50, 4 years there was
0.51 - 0.75, 4 years there was 0.76 - 1.00, 2 years there was 1.01 - 1.25, 3 years there was 1.26.
Total years measured is 142 years.
D. Snowfall Data: On Easter day: 108 there was 0.0, 11 years there was trace, 8 years there was
0.1 - 0.9, 1 year there was 1.0 - 1.9, 0 years there was 2.0 - 2.9, 0 years there was 3.0 - 3.9, 0
years there was 4.0 - 4.9, 2 years there was 5.0>. Total years measured is 130.
ADDITIONAL EASTER DAY CLIMATE DATA ( * MEANS LAST OCCURRENCE)
MAX TEMP
WARMEST
MIN TEMP
WARMEST
PCPN
WETTEST
SNOW
MOST
85
April 10, 1977
62
April 13, 1941
3.12
March 31, 1929
7.1
March 29, 1964
83
April 11, 1971
61
April 19, 1992
1.49
April 9, 1882
6.4
April 4, 1920
82
April 18,1976 *
60
April 18, 1976
1.43
April 22, 1984
1.5
March 30, 1902
81
April 10, 1955 *
58
April 17, 1927
1.16
March 23, 1913
79
April 20, 2014 *
56
April 17, 1938 *
1.01
March 30, 1902
78
April 19, 1987
55
April 12, 1998
0.91
April 14, 1974
76
March 26, 1989
53
April 22, 1962
0.88
April 16, 2006
74
April 22, 1962
52
April 10, 1887
0.80
April 4, 2010 *
73
April 12, 1998 *
51
March 30, 1986
0.61
April 20, 1930
72
March 31, 1918
50
April 20, 2003
0.60
March 31, 1872
MAX TEMP
COLDEST
MIN TEMP
COLDEST
PCPN
DRIEST
SNOW
LEAST
19
March 25, 1894
11
March 24, 1940
0.00
April 20, 2014 *
0.0
April 20, 2014 *
23
March 24, 1940
13
March 25, 1894
T
March 31, 2013 *
T
April 8, 2007 *
28
March 30, 1975
18
March 29, 1964 *
0.01
March 31, 2002 *
0.1
March 26, 1978 *.
Michelle gets a cup of coffee and a muffin every day. She picks a co.pdf
Michelle gets a cup of coffee and a muffin every day. She picks a coffee shop at random and
independently of her choices on other days. The average price for a cup of coffee is $1.45 with a
standard deviation of $.30 and the average price of a muffin is $2.65 with a standard deviation of
$.10 and the two prices are independent of each other at each coffee shop.
What is the standard deviation of the amount she spends on breakfast weekly (7 days)?
Solution.
7. Which of the following statements is truea. Hormone binding to.pdf
7. Which of the following statements is true?
a. Hormone binding to nuclear receptors induces their movement from the nucleus to the
nucleolus in order to promote rDNA transcription.
b. Activation domains across eukaryotic species are often rich in basic amino acid residues.
c. The sequence and structure of the linkages between activator and DNA-binding domains in
transcriptional activator proteins are keys for their function.
d. Multiple types of activation domains are activated by the binding of other molecules such as
co-activators and ligands.
Solution
The sequence and structure of the linkages between activator and DNA-binding domains in
transcriptional activator proteins are keys for their function.
JUST DO QUESTION 8 When you are preparing a budget where could you g.pdf
JUST DO QUESTION 8 When you are preparing a budget where could you gather information
and data from? How could you estimate parameters for your budget? What are the four stages
involved in developing a budget? List and describe the 4 most common budgeting approaches.
You have discussed with the human resource manager the new budget. Why is it now important
that you incorporate their suggestions and make the modifications to the budget promptly? What
types of resources could be allocated in a budget? To ensure effective monitoring and reporting
of budgets what do you need to do? What are the key processes to effectively manage approved
budgets? 1. 2. 3. 4. 5. 6. 7. 8.
Solution
SOME KEY PROCESSES ARE-
1)-THE FIRST STEP OF MANAGING STARTS WITH PLANNING.HENCE THERE
SHOULD BE A PROPER PLAN FROM BEFORE TO EFFECTIVELY MANAGE
BUDGETS.THE PLAN WILL CONTAIN VARIOUS ACTIONS AND STEPS FOR
EFFECTIVE MANANGEMENT.
2)-THE REPECTIVE BUDGET VARIANCES SHOULD BE ANALYSED FROM TIME TO
TIME IN ORDER TO ENSURE THAT BUDGET MADE ULTIMATELY MEETS THE
ORGANISATION OBJECTIVES ON TIME.
3)-THE BUDGET PLANNED OR MADE SHOULD BE REVIEWED AT REGULAR
INTERVALS IN ORDER TO ENSURE THAT IT IS MEETING ORGANISATION GOALS
AND ANY REQUIRED MODIFICATIONS ARE UPDATED ON TIMELY BASIS SO THAT
AN EFFECTIVE MANAGEMENT OF BUDGET REMAINS IN PL.
Information about Ebola is provided on the following pages. After st.pdf
Information about Ebola is provided on the following pages. After studying this information,
outline the chain of infection by identifying the reservoir(s), portal(s) of exit, mode(s) of
transmission, portal(s) of entry, and factors in host susceptibility.
Reservoirs:
Portals of exit:
Modes of transmission:
Portals of entry:
Factors in host susceptibility:
Solution
Still the natural reservoir of Ebola remains not identified and confirm but basis of evidence
suggest that bats are the most likely reservoir.
Ebola exit from its reservoir through contact with body fluids to an infected animal.
Viral particles can be identified in all kind of body fluids suh as blood, tears, saliva, sputum,
breast milk, diarrhea, vomit, urine, sweat and oil glands of the skin, and semen. therefore
transmission occurs by contact of skin or mucus membranes with the body fluids of an infected
person.
Virus ebola enters the body via breaks in the skin which have splashes on skin or mucus
membranes.
Ebola finds its host cell via target on cell that is glycoproteins which helps absorption of the
virus. Once it is entered cell it uncoats and replicating. It initially targets
monocytes/macrophages that respond to the site of infection later via flow it goes to lymph nodes
and then the liver and spleen. It then spreads throughout the body producing a cytotoxic effect in
all infected cells..
Is Athletes foot an opportunistic infection, a nosocomial infection .pdf
Is Athletes foot an opportunistic infection, a nosocomial infection or a community acquired
infection? (explain your logic)
Solution
Athletes foot is a community acquired infection as the source of the fungi is usually present in
areas such as locker rooms and swimming pools. These are caused by molds and the ailment can
be passed on either by direct contact or even by indirect contact such as when the dead skin falls
down. If the fungus has spread to pets then it passes to people who pet them and hence making it
a community acquired infection..
In addition to the extracts and the plasmid DNA, are there any additi.pdf
In addition to the extracts and the plasmid DNA, are there any additional materials you should
add to this in vitro replication system? Explain your answer Which of the following statements is
true with respect to this in vitro replication system? There will be only one leading strand and
one lagging strand produced using this template. The leading and lagging strands compose one
half of each newly synthesized DNA stand. The DNA replication machinery can assemble at
multiple places on this plasmid. One daughter DNA molecule will be slightly shorter than the
other. You decide to use different bacterial strains (each having one protein of the replication
machinery mutated in order to examine the role of individual proteins in the normal process of
DNA replication. What part of the DNA replication process would be most directly affected if a
strain of bacteria lacking primase used to make the cell extracts? initiation of DNA synthesis
Okazaki fragment synthesis leading-strand elongation lagging-strand completion
Solution
11.Taq polymerase, a heat resistant DNA polymerase, so that it can remain intact during the
DNA denaturation process.
Two primers
Deoxynucleoside triphosphates (dNTPs, sometimes called \"deoxynucleotide triphosphates\";
nucleotides containing triphosphate groups), building-blocks of the DNA polymerase synthesizes
a new DNA strand.
Buffer medium, providing a suitable chemical environment for optimum activity and stability of
the DNA polymerase
Bivalent cations, magnesium or manganese ions; generally Mg2+ is used, but Mn2+ can be used
for PCR-mediated DNA mutagenesis, as higher Mn2+ concentration increases the error rate
during DNA synthesis.
Monovalent cation potassium ions
are needed for invitro DNA replication.
12. The answer is A. There will be only one leading strand aand one lagging strand producced
using this template.
13. 13. Initiation of DNA syntheis. Primer, The Starter, is a product of Primase.
I would like to know if my answers are correct. the questions is at .pdf
I would like to know if my answers are correct. the questions is at the bottom of the pictures
Quaternary Mesozoic Tertiary Paleozoic 100 Cretaceous Jurassic Triassic Pennsylvanian iso
Mississippian Devonian Silurian Ordovician Cambrian Select the letter that best represents the
time period of the first living organisms:
Solution
Considering the evolutionary history of organisms, the most primitive organisms were single
cellular prokaryotes. These organisms appeared in the archean time near the paleozoic era.
On the contrary, cenozoic era was predominantly occupied by mammals hence it is,also called
the age of mammals.
Importantly, the second question asking the diversification time of mammals or hominids will be
answered as cenozoic and all tge eras after it because post cenozoic era, mammals especially
hominids excelled on earth.
Hence, the correct answer is paleozoic era, not cenozoic era..
In 1987 all of the California condors living in the wild were capture.pdf
In 1987 all of the California condors living in the wild were captured. The total population was
around 27 individuals at this time. Many groups of scientists and ecologists worked together to
begin a captive breeding program to help this bird recover in the wild. In 1991 scientists started
to release captive-bred condors back out into the wild. By 2011 there were 205 condors living in
the wild. This program cost over 35 million dollars. Do you think this money is well spent?
Support your answer with your reasoning.
Solution
yes, this money is spent
the producing of captive- bres condors is more.so, more time and cost.
Humans and nonhuman primates share a suite of traits, including gras.pdf
Humans and nonhuman primates share a suite of traits, including grasping hands and binocular
vision, so their last common ancestor must have also shared this suite of traits. These traits in
humans and nonhuman primates is therefore an example of
a. recombination.
b. balancing selection.
c. homology.
d. analogy.
Solution
The similar traits between human and nonhuman primates is an example of homology.
Homology is shared ancestory between structures or genes different taxa groups. Similarity is an
evidence that they diverged from common ancester. These structures adapt to different functions
for different purposes..
Graphs A and B despite two ways of determining how molecules (in this.pdf
Graphs A and B despite two ways of determining how molecules (in this case, molecules (X, Y,
Z) can gain entry into a cell: Increase the extracellular concentration (Co) of the molecule and
measure flux and keep Co constant and measure the intracellular concentration (Ci) of the
molecule over time until equilibrium is reached. Which of the molecules enters by facilitated
diffusion? explain? Which molecule enters by active transport? explain?
Solution
Answer (A) In graph A, transport of molecule Z does not show saturation, which is consistent
with diffusion.
Answer (B)
In graph A, the rate of transport (flux) of molecules X and Y saturate, which is consistent with
mediated transport (facilitated diffusion).
Answer (C)
In graph B, molecules X and Z reach equilibrium (Ci>Co) indicating active transport.
For further read the theory of simple diffusion and facilitated diffusion.
DIFFUSION
Diffusion is the movement of molecules from one location to another by random thermal motion.
The net flux between two compartments always proceeds from higher to lower concentration of
the diffusing substance.
Diffusion equilibrium is reached when the concentrations in the two compartments become
equal, resulting in zero net flux.
The magnitude of the net flux F across a plasma membrane is directly proportional to the
concentration difference across the membrane C - C, the surface area of the membrane A, and
the membrane permeability constant k.
Non-polar molecules diffuse through the lipid portions of membranes much more rapidly than
do polar or ionized molecules because nonpolar molecules can dissolve in the non-polar lipids in
the membrane.
Mineral ions diffuse across membranes by passing through ion channels formed by integral
membrane proteins.
The net diffusion of ions across a membrane depends on both the concentration gradient and the
membrane potential.
The flux of ions across a membrane can be altered by opening or closing ion channels.
MEDIATED-TRANSPORT SYSTEMS
The mediated transport of molecules or ions across a membrane involves binding of the
transported solute to a transporter in the membrane. Changes in the conformation of the
transporter move the binding site to the opposite side of the membrane, where the solute
dissociates from the protein.
The binding sites on transporters exhibit chemical specificity, affinity and saturation.
The magnitude of the flux through a mediated-transport system depends on the degree of
transporter saturation, the number of transporters in the membrane, and the rate at which the
conformational change in the transporter occurs.
Facilitated diffusion is a mediated-transport process that moves molecules from higher to lower
concentration across a membrane by means of a transporter until the two concentrations become
equal. Metabolic energy is not required for this process.
Active transport is a mediated-transport process that moves molecules against an electro-
chemical difference across a membrane by means of a transp.
Giraffes have long necks that allow them to reach more food sources .pdf
Giraffes have long necks that allow them to reach more food sources in their habitat. The long
neck trait is an example of A. selection. B. adaptation. C. radiation. D. homology.
Solution
Answer:B. adaptation.
The long neck in giraffes is due to the adaptation in the natural habitat. In the course of the
evolution, the adapations are necessary for the animals to survive , for survival, the organism
should undergo adaptation.Due to long long it can eat the leaves from the trees..
Unit 8 - Information and Communication Technology (Paper I).pdf
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Template Jadual Bertugas Kelas (Boleh Edit)
Jadual Bertugas kelas dalam bentuk softcopy PowerPoint. Cikgu boleh download >> edit >> print >> laminate. Semoga bermanfaat.
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What are the methods, mechanisms, and types of media by which German.pdf
What are the methods, mechanisms, and types of media by which Germany youth, including
Heck, are socialized and indoctrinated under National Socialism?
Solution
German peopel resepects their nation much and they believe in their system. they are basically
true lovers of their nation and they works together to achieve national goals. they always give
first priority to national goals and later personal benefits. they thinks that all are equal in the
nation and every one should get the same facilities and same treatment from society or
government also.
there are different types of media where the young people use to promote the national previlage
and priorities. they used social media sites like twitter, facebook and also they use the support of
print media.
the other media is telecast and broad cast media, by using all these types of media German youth
are implementing their national socilism..
VHDL programming assignmentwrite functions for each of the follow.pdf
VHDL programming assignment:
write functions for each of the following purpose:
a function that takes in an array of integers and returns the average of the numbers in that array.
this array has a dynamic size.inside this function u cannot declare any variables or signals and
you are only permitted to use the inputs and the outputs. the function must hold the following
form:
Solution
for ( i=1;i=1to 10;i++)
i = 1 2 3 4 5 6 7 8 9 10
AVG= (I=1 to 10)
AVG(int i=1.
This is a Physiology qquestion. Describe the two general meanings of.pdf
This is a Physiology qquestion. Describe the two general meanings of the term membrane, as
used in biology. Which usage indicates layers of cells and which indicates layers of molecules?
Solution
Answer:
Two general meanings of the term \"membrane\" in biology are to describe the structure of cell
membrane that is permeable to some molecules but not all molecules. Second meaning of a
\"membrane in biological cell\" is to protect inner cytoskeleton with organelles. Membrane is
made of phospholipid bilayer in which one is hydrophilic region and another is hydrophobic
region. The phsopholipid layers indicates layers of lipids and membrane proteins whereas the
layers of cells is mainly due to \"membrane associated cell adhesion molecules\"
These three macromolecules together to form a complex phospholipid bilayer in which
periplasmic proteins are distributed in a mosaic manner. The large fluid mosaic structure is
formed from these macromolecules composed of phospholipid bilayers with protein channels for
the transport of organic & inorganic nutrients including trace metal. Normally, the essential
aspects of these structures composed of \"porins, protein channels, integral proteins” that dictate
their function for the selective permeability, diffusion of nutrients across the membrane into &
out of the cell finally to attain homeostasis
Fluid mosaic model describes that two-dimensional liquid layer of cell membrane where proteins
distributed like mosaic model in the phospholipid bilayer. This model mostly accepted by
biologists Role of the protein molecules in this model cell membrane layers are membrane
extracellular protein domains in connection to the lipid bilayer membrane. Membrane
phospholipids are the molecules with hydrophillic polar heads towards the solvent such as water
whereas hydrophobic tail located towards the center of the layer and this bilayer formed by
micelles, as fatty acids possess one polar associated with another nonpolar head. Cell membrane
possesses a property known as selective permeability. Cell membrane consists of phopholipid
bilayer that also include several of the transmembrane proteins, ion channels etc. Small, non-
polar molecules with hydrophobic nature diffuse more easily into the cell membrane. Similarly,
proteins interact and assemble themselves to form several layers of structures in our body..
Type I hypersensitivity is a Th1 type response Th2 type response T.pdf
Type I hypersensitivity is a Th1 type response Th2 type response Th17 type response none of
the above Type III hypersensitivities involve large number of antibody-antigen complexes that
the body is having difficulty clearing up. Which organ is frequently overwhelmed by these
antibody/antigen complexes? liver lymph nodes kidney none the above Mosquito bites can
often result in a swollen skin area around the bite which is red and sore. This reaction is caused
by a saliva protein secreted by the mosquito to avoid clotting of the blood. Which type of
hypersensitivity do mosquitoe bites usually cause? type I type II type III type IV
Solution
13. Answer is Th-2. Type-1 hypersensitivity is a Th-2 response. In this B-lymphocytes are
stimulated by CD4+ or Th-2 cell in response to allergin and produce Ig-E antibodies which bind
to mast cells and execute Type-1 Hypersensitivity
14. Answe is Kidney or Glomarulus. The immune complexs frequently accumulate in Blood
vessels, Joints and kidneys
15. Type-1.
The wide diversity of arthropod body plans can be attributed toQu.pdf
The wide diversity of arthropod body plans can be attributed to:
Question 8 options:
flexibility in metabolism that lets them use a variety of carbon and energy sources
small body sizes that allow individuals to colonize many habitats
mutations in genes that regulate the development of limbs, mouthparts, etc.
acquisition of mitochondria through endosymbiosis of proteobacteria
flexibility in metabolism that lets them use a variety of carbon and energy sources
small body sizes that allow individuals to colonize many habitats
mutations in genes that regulate the development of limbs, mouthparts, etc.
acquisition of mitochondria through endosymbiosis of proteobacteria
Solution
The wide diversity of arthropod body plans can be attributed to : mutations in genes that regulate
the development of limbs ,mouthparts etc..
The sample median is astatisticp-valueresidualparameterA.s.pdf
The sample median is a
statistic
p-value
residual
parameterA.
statisticB.
p-valueC.
residualD.
parameter
Solution
Any number describing a sample in general is
OPTION A: statistic [ANSWER]
****************
A parameter is the second closest answer, but it is for a POPULATION, but we have a sample
here.
P value and residual are far off from the point here. Thanks!.
The main advantage of organizing a business as a C Corporation in th.pdf
The main advantage of organizing a business as a C Corporation in the U.S. is: A) Limited
Liability B) Separation of ownership and managment C) Double taxation D) The relatively low
costs of incorporation versus the other forms of business E) Tax exemption
Solution
Ans option A
Limited liability is the main advantage of organizing a business as a corporation in US
It reduces the risk in case of default.
Single Source Shortest Path Assume that you have a model of a weight.pdf
Single Source Shortest Path Assume that you have a model of a weighted, connected graph made
of balls (representing the vertices) connected by strings (that represent the edges) with lengths
that represent the weighting of that edge. Describe how you can solve the single-source shortest-
path problem with this model.
Solution
-->Hold the ball representing the source in one hand and let the rest of the model hang down.
-->The force of gravity will make the shortest path to each of the other balls be on a straight line
down..
Question 2 Easter Climate Data for Chicago - weather.gov670 × 454Se.pdf
Question 2: Easter Climate Data for Chicago - weather.gov670 × 454Search by image
The following statistics comprises 142 years of data. However snowfall data started in 1885 so it
comprises 130 years. Data collection began at the University of Chicago, then at Midway, and
currently at O\'Hare which is now the official station for Chicago. Explain each of the following
4 charts (High, Low, Precipitation, Snowfall). Include rules, formulas, calculations, results and
interpretations of results. Include additional climate data table in your answer. Demonstrate all
quantitative or qualitative results for each chart (i.e, mean, median, mode, probability, deviation,
range, intervals, width, coefficient variation, boundary points, ROC, measure of location,
measure of spread, arithmetic mean, geometric mean, quantiles, etc.)
Easter Day Data:
A. High Temperatures Data: On Easter day: for 4 years it was <30, for 15 years it was 30-39, for
37 years it was 40-49, for 37 years it was 50-59, for 29 years it was 60-69, 13 years it was 70-79,
7 years it was 80>. The total years measured = 142 years.
B. Low Temperature Data: On Easter day: for 0 years it was <10, for 4 years it was 10-19, for 22
years it was 20-29, for 63 years it was 30-39, for 38 years it was 40-49, for 12 years it was 50-59,
for 3 years it was 60>. The total years measured = 142 years.
C. Precipitation Data: On Easter day: 61 years there was 0.00, 22 years there was trace, 7 years
there was 0.01, 32 years there was 0.02 - 0.25, 8 years there was 0.26 - 0.50, 4 years there was
0.51 - 0.75, 4 years there was 0.76 - 1.00, 2 years there was 1.01 - 1.25, 3 years there was 1.26.
Total years measured is 142 years.
D. Snowfall Data: On Easter day: 108 there was 0.0, 11 years there was trace, 8 years there was
0.1 - 0.9, 1 year there was 1.0 - 1.9, 0 years there was 2.0 - 2.9, 0 years there was 3.0 - 3.9, 0
years there was 4.0 - 4.9, 2 years there was 5.0>. Total years measured is 130.
ADDITIONAL EASTER DAY CLIMATE DATA ( * MEANS LAST OCCURRENCE)
MAX TEMP
WARMEST
MIN TEMP
WARMEST
PCPN
WETTEST
SNOW
MOST
85
April 10, 1977
62
April 13, 1941
3.12
March 31, 1929
7.1
March 29, 1964
83
April 11, 1971
61
April 19, 1992
1.49
April 9, 1882
6.4
April 4, 1920
82
April 18,1976 *
60
April 18, 1976
1.43
April 22, 1984
1.5
March 30, 1902
81
April 10, 1955 *
58
April 17, 1927
1.16
March 23, 1913
79
April 20, 2014 *
56
April 17, 1938 *
1.01
March 30, 1902
78
April 19, 1987
55
April 12, 1998
0.91
April 14, 1974
76
March 26, 1989
53
April 22, 1962
0.88
April 16, 2006
74
April 22, 1962
52
April 10, 1887
0.80
April 4, 2010 *
73
April 12, 1998 *
51
March 30, 1986
0.61
April 20, 1930
72
March 31, 1918
50
April 20, 2003
0.60
March 31, 1872
MAX TEMP
COLDEST
MIN TEMP
COLDEST
PCPN
DRIEST
SNOW
LEAST
19
March 25, 1894
11
March 24, 1940
0.00
April 20, 2014 *
0.0
April 20, 2014 *
23
March 24, 1940
13
March 25, 1894
T
March 31, 2013 *
T
April 8, 2007 *
28
March 30, 1975
18
March 29, 1964 *
0.01
March 31, 2002 *
0.1
March 26, 1978 *.
Michelle gets a cup of coffee and a muffin every day. She picks a co.pdf
Michelle gets a cup of coffee and a muffin every day. She picks a coffee shop at random and
independently of her choices on other days. The average price for a cup of coffee is $1.45 with a
standard deviation of $.30 and the average price of a muffin is $2.65 with a standard deviation of
$.10 and the two prices are independent of each other at each coffee shop.
What is the standard deviation of the amount she spends on breakfast weekly (7 days)?
Solution.
7. Which of the following statements is truea. Hormone binding to.pdf
7. Which of the following statements is true?
a. Hormone binding to nuclear receptors induces their movement from the nucleus to the
nucleolus in order to promote rDNA transcription.
b. Activation domains across eukaryotic species are often rich in basic amino acid residues.
c. The sequence and structure of the linkages between activator and DNA-binding domains in
transcriptional activator proteins are keys for their function.
d. Multiple types of activation domains are activated by the binding of other molecules such as
co-activators and ligands.
Solution
The sequence and structure of the linkages between activator and DNA-binding domains in
transcriptional activator proteins are keys for their function.
JUST DO QUESTION 8 When you are preparing a budget where could you g.pdf
JUST DO QUESTION 8 When you are preparing a budget where could you gather information
and data from? How could you estimate parameters for your budget? What are the four stages
involved in developing a budget? List and describe the 4 most common budgeting approaches.
You have discussed with the human resource manager the new budget. Why is it now important
that you incorporate their suggestions and make the modifications to the budget promptly? What
types of resources could be allocated in a budget? To ensure effective monitoring and reporting
of budgets what do you need to do? What are the key processes to effectively manage approved
budgets? 1. 2. 3. 4. 5. 6. 7. 8.
Solution
SOME KEY PROCESSES ARE-
1)-THE FIRST STEP OF MANAGING STARTS WITH PLANNING.HENCE THERE
SHOULD BE A PROPER PLAN FROM BEFORE TO EFFECTIVELY MANAGE
BUDGETS.THE PLAN WILL CONTAIN VARIOUS ACTIONS AND STEPS FOR
EFFECTIVE MANANGEMENT.
2)-THE REPECTIVE BUDGET VARIANCES SHOULD BE ANALYSED FROM TIME TO
TIME IN ORDER TO ENSURE THAT BUDGET MADE ULTIMATELY MEETS THE
ORGANISATION OBJECTIVES ON TIME.
3)-THE BUDGET PLANNED OR MADE SHOULD BE REVIEWED AT REGULAR
INTERVALS IN ORDER TO ENSURE THAT IT IS MEETING ORGANISATION GOALS
AND ANY REQUIRED MODIFICATIONS ARE UPDATED ON TIMELY BASIS SO THAT
AN EFFECTIVE MANAGEMENT OF BUDGET REMAINS IN PL.
Information about Ebola is provided on the following pages. After st.pdf
Information about Ebola is provided on the following pages. After studying this information,
outline the chain of infection by identifying the reservoir(s), portal(s) of exit, mode(s) of
transmission, portal(s) of entry, and factors in host susceptibility.
Reservoirs:
Portals of exit:
Modes of transmission:
Portals of entry:
Factors in host susceptibility:
Solution
Still the natural reservoir of Ebola remains not identified and confirm but basis of evidence
suggest that bats are the most likely reservoir.
Ebola exit from its reservoir through contact with body fluids to an infected animal.
Viral particles can be identified in all kind of body fluids suh as blood, tears, saliva, sputum,
breast milk, diarrhea, vomit, urine, sweat and oil glands of the skin, and semen. therefore
transmission occurs by contact of skin or mucus membranes with the body fluids of an infected
person.
Virus ebola enters the body via breaks in the skin which have splashes on skin or mucus
membranes.
Ebola finds its host cell via target on cell that is glycoproteins which helps absorption of the
virus. Once it is entered cell it uncoats and replicating. It initially targets
monocytes/macrophages that respond to the site of infection later via flow it goes to lymph nodes
and then the liver and spleen. It then spreads throughout the body producing a cytotoxic effect in
all infected cells..
Is Athletes foot an opportunistic infection, a nosocomial infection .pdf
Is Athletes foot an opportunistic infection, a nosocomial infection or a community acquired
infection? (explain your logic)
Solution
Athletes foot is a community acquired infection as the source of the fungi is usually present in
areas such as locker rooms and swimming pools. These are caused by molds and the ailment can
be passed on either by direct contact or even by indirect contact such as when the dead skin falls
down. If the fungus has spread to pets then it passes to people who pet them and hence making it
a community acquired infection..
In addition to the extracts and the plasmid DNA, are there any additi.pdf
In addition to the extracts and the plasmid DNA, are there any additional materials you should
add to this in vitro replication system? Explain your answer Which of the following statements is
true with respect to this in vitro replication system? There will be only one leading strand and
one lagging strand produced using this template. The leading and lagging strands compose one
half of each newly synthesized DNA stand. The DNA replication machinery can assemble at
multiple places on this plasmid. One daughter DNA molecule will be slightly shorter than the
other. You decide to use different bacterial strains (each having one protein of the replication
machinery mutated in order to examine the role of individual proteins in the normal process of
DNA replication. What part of the DNA replication process would be most directly affected if a
strain of bacteria lacking primase used to make the cell extracts? initiation of DNA synthesis
Okazaki fragment synthesis leading-strand elongation lagging-strand completion
Solution
11.Taq polymerase, a heat resistant DNA polymerase, so that it can remain intact during the
DNA denaturation process.
Two primers
Deoxynucleoside triphosphates (dNTPs, sometimes called \"deoxynucleotide triphosphates\";
nucleotides containing triphosphate groups), building-blocks of the DNA polymerase synthesizes
a new DNA strand.
Buffer medium, providing a suitable chemical environment for optimum activity and stability of
the DNA polymerase
Bivalent cations, magnesium or manganese ions; generally Mg2+ is used, but Mn2+ can be used
for PCR-mediated DNA mutagenesis, as higher Mn2+ concentration increases the error rate
during DNA synthesis.
Monovalent cation potassium ions
are needed for invitro DNA replication.
12. The answer is A. There will be only one leading strand aand one lagging strand producced
using this template.
13. 13. Initiation of DNA syntheis. Primer, The Starter, is a product of Primase.
I would like to know if my answers are correct. the questions is at .pdf
I would like to know if my answers are correct. the questions is at the bottom of the pictures
Quaternary Mesozoic Tertiary Paleozoic 100 Cretaceous Jurassic Triassic Pennsylvanian iso
Mississippian Devonian Silurian Ordovician Cambrian Select the letter that best represents the
time period of the first living organisms:
Solution
Considering the evolutionary history of organisms, the most primitive organisms were single
cellular prokaryotes. These organisms appeared in the archean time near the paleozoic era.
On the contrary, cenozoic era was predominantly occupied by mammals hence it is,also called
the age of mammals.
Importantly, the second question asking the diversification time of mammals or hominids will be
answered as cenozoic and all tge eras after it because post cenozoic era, mammals especially
hominids excelled on earth.
Hence, the correct answer is paleozoic era, not cenozoic era..
In 1987 all of the California condors living in the wild were capture.pdf
In 1987 all of the California condors living in the wild were captured. The total population was
around 27 individuals at this time. Many groups of scientists and ecologists worked together to
begin a captive breeding program to help this bird recover in the wild. In 1991 scientists started
to release captive-bred condors back out into the wild. By 2011 there were 205 condors living in
the wild. This program cost over 35 million dollars. Do you think this money is well spent?
Support your answer with your reasoning.
Solution
yes, this money is spent
the producing of captive- bres condors is more.so, more time and cost.
Humans and nonhuman primates share a suite of traits, including gras.pdf
Humans and nonhuman primates share a suite of traits, including grasping hands and binocular
vision, so their last common ancestor must have also shared this suite of traits. These traits in
humans and nonhuman primates is therefore an example of
a. recombination.
b. balancing selection.
c. homology.
d. analogy.
Solution
The similar traits between human and nonhuman primates is an example of homology.
Homology is shared ancestory between structures or genes different taxa groups. Similarity is an
evidence that they diverged from common ancester. These structures adapt to different functions
for different purposes..
Graphs A and B despite two ways of determining how molecules (in this.pdf
Graphs A and B despite two ways of determining how molecules (in this case, molecules (X, Y,
Z) can gain entry into a cell: Increase the extracellular concentration (Co) of the molecule and
measure flux and keep Co constant and measure the intracellular concentration (Ci) of the
molecule over time until equilibrium is reached. Which of the molecules enters by facilitated
diffusion? explain? Which molecule enters by active transport? explain?
Solution
Answer (A) In graph A, transport of molecule Z does not show saturation, which is consistent
with diffusion.
Answer (B)
In graph A, the rate of transport (flux) of molecules X and Y saturate, which is consistent with
mediated transport (facilitated diffusion).
Answer (C)
In graph B, molecules X and Z reach equilibrium (Ci>Co) indicating active transport.
For further read the theory of simple diffusion and facilitated diffusion.
DIFFUSION
Diffusion is the movement of molecules from one location to another by random thermal motion.
The net flux between two compartments always proceeds from higher to lower concentration of
the diffusing substance.
Diffusion equilibrium is reached when the concentrations in the two compartments become
equal, resulting in zero net flux.
The magnitude of the net flux F across a plasma membrane is directly proportional to the
concentration difference across the membrane C - C, the surface area of the membrane A, and
the membrane permeability constant k.
Non-polar molecules diffuse through the lipid portions of membranes much more rapidly than
do polar or ionized molecules because nonpolar molecules can dissolve in the non-polar lipids in
the membrane.
Mineral ions diffuse across membranes by passing through ion channels formed by integral
membrane proteins.
The net diffusion of ions across a membrane depends on both the concentration gradient and the
membrane potential.
The flux of ions across a membrane can be altered by opening or closing ion channels.
MEDIATED-TRANSPORT SYSTEMS
The mediated transport of molecules or ions across a membrane involves binding of the
transported solute to a transporter in the membrane. Changes in the conformation of the
transporter move the binding site to the opposite side of the membrane, where the solute
dissociates from the protein.
The binding sites on transporters exhibit chemical specificity, affinity and saturation.
The magnitude of the flux through a mediated-transport system depends on the degree of
transporter saturation, the number of transporters in the membrane, and the rate at which the
conformational change in the transporter occurs.
Facilitated diffusion is a mediated-transport process that moves molecules from higher to lower
concentration across a membrane by means of a transporter until the two concentrations become
equal. Metabolic energy is not required for this process.
Active transport is a mediated-transport process that moves molecules against an electro-
chemical difference across a membrane by means of a transp.
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Giraffes have long necks that allow them to reach more food sources in their habitat. The long
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Solution
Answer:B. adaptation.
The long neck in giraffes is due to the adaptation in the natural habitat. In the course of the
evolution, the adapations are necessary for the animals to survive , for survival, the organism
should undergo adaptation.Due to long long it can eat the leaves from the trees..
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