A study of cats and dogs found that 11 of 50 cats and 21 of 50 dogs .pdf
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A study of cats and dogs found that 11 of 50 cats and 21 of 50 dogs slept more than 10 hours per day. At the ? = .01 level of significance, is there sufficient evidence to conclude that a difference exists between the proportion of cats and the proportion of dogs that sleep more than 10 hours per day? Complete the output to include the following steps: the null and alternative hypothesis, the z - value, the p-value, and make a decision whether to reject H0 or not to reject H0 and write a valid conclusion based on the claim or the test. Solution p1=11/50 =0.22 p2= 21/50 = 0.42 Null hypothesis: p1=p2 Alternative hypothesis: p1 not equal to p2 The test statistic is Z=(p1-p2)/sqrt(p1*(1-p1)/n1+p2*(1-p2)/n2) =(0.22-0.42)/sqrt(0.22*(1-0.22)/50+0.42*(1-0.42)/50) =-2.19 It is a two-tailed test. So the p-value= 2*P(Z<-2.19) = 0.0285 (from standard normal table) Since the p-value is larger than 0.01, we do not reject Ho. So we can not conclude that a difference exists between the proportion of cats and the proportion of dogs that sleep more than 10 hours per day.
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Solution
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If it is legitimate, what are acceptable and unacceptable methods of rebellion?
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Solution
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Please write a nice paragraph not a list
Solution
What does \"intervention\" mean?
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How does it fit into the organizational development process?
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promotion, and the interventions are a way to achieve it. Without change is not possible
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What are the key considerations when deciding on an intervention?
If It is dealing with an specific problem, that requires to act quickly, to have it identified, what
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others). Later, depending of the subject, to design carefully the intervention, taking into account
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process, promote cooperation and trust, putting employees first and improving control
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Describe how OD interventions need to be adapted to fit different cultural contexts.
The cultural context included values, behaviors, beliefs and norms of members of the
organization, if the intervention implies a confrontation with this frame; then it is going to find
opposition by the groups. Having this in mind, interventions success depends of its ability to
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Describe how to open a file in Excel? What is the difference between opening a file and creating
a new file in Excel?
Solution
Opening a file in Excel:
If there is a existing file in excel, it can be opened by following procedure:
Click “Microsoft Office Button”.
All programs will be visible.
Click “ File explore”
Select the location where the file exists ( eg. Desktop, downloads, C-drive , E drive).
Lick on the location.
All files and folders available in the location will be visible.
Select the file you want to open.
Double click on the file.
The file will open.
If the file is in a folder.
Click on the folder, the file will be visible.
Select the file and double click on the file to open it.
Creating a file:
Creating a file means , a file does not exist. It needs to be created.
A file which already exists with a file name , it can be opened. Generally such files will contain
data.
Creating a file means entering data in the file, giving it a file name and saving it in some location
like desk top or in drive.
To create a file ,
Click “Microsoft Office Button”.
Select “Microsoft Office Excel”
Click on Microsoft Office Excel
A new window will open for excel file.
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Describe the role of plasmids in horizontal (lateral) gene transfer .pdf
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Solution
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Make sure you include how each condition adversely affects the pulmonary system.
Solution
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structure of airways carries air into the body Balance between oxygen and carbon dioxide in the
blood regulates pulmonary respiration Pulmonary toxicity is due to chemotherapy for cancer and
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Solution
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2) regression
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abdominal exocrine gland secretions to its cuticle. Bioassays reveal that detoxify S. these invicta
venom. Further, formic acid from N. fulva venom is the detoxifying agent. N. fulva exhibits this
detoxification behavior after conflict with a variety of ant species; however, it expresses it most
intensely after interactions with S. invicta. This behavior may have evolved in their shared South
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contributes substantially to its ability to displace s. invicta populations, making this behavior a
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Solution
Explanation:-
1. The scientific name of tawny crazy ants is Nylanderia fulva (N.fulva).
2. The N. fulva invade the Southern united states, and they have displaced Solenopsis invicta
(Fire ants).
3. When the S. invicta venom comes in contact with N. fulva, it secretes certain secretions form
the abdominal(relating to stomach) exocrine gland to its S.invicta cuticle(outer covering).
Bioassay (measurement of the concentration) reveals that the secretion from N.fulva detoxify
(removes toxin) from the S.invicta.
4. Usually, the formic acid is present in the secretion which acts as detoxifying agent.
5. N.fulva exhibits this detoxification behaviour with other ants as well but the intensity is most
with S. invicta. This may be due to their same habitat i.e. American native range.
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According to the USA Snapshot “Knowing drug addicts” 40 of American.pdf
According to the USA Snapshot “Knowing drug addicts” 40% of Americans know somebody
who became addicted to a drug other than alcohol. Assuming this to be true, what is the
probability that out of a group of 20 randomly selected Americans: a. Exactly 10 know
somebody who became addicted to a drug? b. At most 10 know somebody who became addicted
to a drug? c. More than 10 know somebody who became addicted to a drug?
Solution.
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A project has the following cash flows: What is the project\'s NPV if the interest rate is $6%? 0 1
2 3 ($500) $100 $200 $310?
Solution
Present value of inflows=cash inflow*Present value of discounting factor(rate%,time period)
=100/1.06+200/1.06^2+310/1.06^3
=$532.62(Approx)
NPV=Present value of inflows-Present value of outflows
=$532.62-$500
=$32.62(Approx).
1.) What is the best definition of social inequalitysocial inequa.pdf
1.) What is the best definition of social inequality?
social inequality means that some people rely on food stamps and welfare more than others
social inequality means that some people have less income than others
social inequality describes a situation in which poverty and unemployment are persistent
problems
social inequality means that people have unequal access to valued resources in society
2.) Which of the following is true about intentional deception in research?
Researchers are exempt from lawsuits as long as they are using deception to learn about the
human condition
Participants could be harmed if they are not properly informed about the nature of the study
Research participants who intentionally deceive researchers may be banned from participating in
future research
All of the above
3.) A sociologist conducts research on the ways in which Hispanic American students are
historically underprivileged in the American education system. Which theoretical approach is the
sociologist using?
Conflict Theory
Ethnocentrism
Symbolic Interactionism
Structural Functionalism
4.) Karl Marx was a pioneer of the structural functionalism perspective of sociology
True
False
5.) When a researcher immerses her or himself in a culture over an extended period of time in
order to gain a close and intimate familiarity with a group of individuals and their practices, this
is called what?
Geneology
Participant observation
Cultural analysis
Ethnic Observation
6.) In his book Suicide, Durkheim sought to explain how religious affiliation related to suicide.
According to Durkheim, which of the following is true?
Suicide is the final step for religious conversion
Protestants are less likely than any other group to commit suicide
Catholic laws weakened social bonds among protestants
The looser social ties found in protestant religions lead to less social integration and higher rates
of suicide
7.) In order to be value-neutral, sociologists must be aware of their own moral judgments and
values, and avoid incorporating them into their research, their conclusions, and their teaching.
True
False
social inequality means that some people rely on food stamps and welfare more than others
social inequality means that some people have less income than others
social inequality describes a situation in which poverty and unemployment are persistent
problems
social inequality means that people have unequal access to valued resources in society
Solution
Ques-1: answer: social inequality means that people have unequal access to valued resources in
society
Reason:
Social inequality means that people have unequal access to valued resources, government
resources & government positions in society therefore, according to capitalism, libertarianism,
goods and government services must be equally distributed for social justice & social equality to
improve economy of the communities for instance, if 5% of the people should not hold entire
economy of the wealth. Therefore, it is crucial to .
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media Blood vessels of the large arteries and veins that are greater than 1mm in diameter are
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artery is an example the tunica media has more smooth muscle than elastic fibers they are also
referred to as distributing arteries they contain both the internal elastic membrane and the
external elastic membrane proportionately, has the thickest tunica media of ail vessels common
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veins at any given time capillaries are known as blood reservoirs for extra blood veins of the
appendages that are greater than 2 mm in diameter have valves made of fold in the intima and are
similar to shape and function of the semilunar valves compared to their companion arteries,
veins have a very thick tunica intima which contains an internal elastic membrane, a thin tunica
mod a with no external elastic membrane and a vety tunica adventitia (externa)
Solution
1. Endothelium is:
b. simple squamous cells that is in contact with the blood
2. Vasa vasorum
3. Tunica media has more smooth muscles than elastic fibers
They are also called distributing artery
4. The distal portion of the metarteriole that has no smooth muscle is called a thoroughfare
channel.
Which statement is true (more than one may be selected)a) Substan.pdf
Which statement is true? (more than one may be selected)
a) Substances that release protons when they dissolve in water are termed bases and result in a
pH higher than 7.
b) Substances that release protons when they dissolve in water are termed acids and result in a
pH higher than 7.
c) Bases (alkali) are any aqueous environments where the proton content decreases and the pH
increases.
d) Acids are any aqueous environments where the proton content increases and the pH decreases.
e) Substances that release protons when they dissolve in water are termed acids and result in a
pH lower than 7.
Solution
Ans. Which statement is true? (more than one may be selected)
a) Substances that release protons when they dissolve in water are termed bases and result in a
pH higher than 7. Incorrect- it is an acid
b) Substances that release protons when they dissolve in water are termed acids and result in a
pH higher than 7. Incorrect- it is “pH lower than 7”
c) Bases (alkali) are any aqueous environments where the proton content decreases and the pH
increases.
d) Acids are any aqueous environments where the proton content increases and the pH decreases.
e) Substances that release protons when they dissolve in water are termed acids and result in a
pH lower than 7. Correct option
Correct option: E
Explanation: Acid is a molecule or ion that donates proton.
An aqueous environment may facilitate acceptance or release of proton to/from a molecule, but
the environment can’t be termed an acid or base because it does not represent a specific molecule
or ion. For example, adding HCl to NaCl solution (say, normal saline) cause donation of proton
from HCl molecule to the solution. Here, NaCl- the aqueous environment, accept a proton- BUT
NaCl solution is NOT a base because it does NOT represent a specific molecule or ion. So, for
being an acid or base- it must be a molecule or ion, NOT an aqueous environment. Though H2O
(water) alone can act as acid or base depending on the acid/base added to it; but the term
‘aqueous environment’ is NOT exclusive for water. So, it can’t be treated as an acid or base.
Therefore, options C, D are incorrect.
pH = - log [H]. Addition of an acid to water (solvent) cause an increase in [H+] ions in water
because acid donates proton to water. Increase in [H+] lowers the pH , i.e. pH is reduced below
7.0; say pH lowered from 7.0 to 4.0. Thus “Substances that release protons when they dissolve in
water are termed acids and result in a pH lower than 7.”
So, options A, B are incorrect..
Write down the reaction for the catabolism of ATP Does that occ.pdf
Write down the reaction for the catabolism of ATP: Does that occur by dehydration or
hydrolysis? Is energy released or required when ATP is broken down?
Solution
Answer:
ATP catabolism:
ATP + 2H2O ----------> ADP + Pi (inorganic phosphate) + Energy (G = -30.5 kJ/mol of ATP)
The above reaction is hydrolysis. It is an energy yielding process.
ATP hydrolysis, water is used to split apart ATP to create ADP (adenosine diphosphate) to get
energy..
48. The figure above shows the graph of a polynomial function f. What.pdf
48. The figure above shows the graph of a polynomial function f. What is the least possible
degree of f (A) Two (B) Three (C) Four (D) Five (E) Six
Solution
This has three bumps , it\'s an even-degree polynomial (being \"up\" on both ends), and the zero
in the middle is an even-multiplicity zero. Also, the bump in the middle looks flattened, so this is
probably a zero of multiplicity 4 or more. With the two other zeroes looking like multiplicity-1
zeroes, this is a likely graph for a sixth-degree polynomial.
Option E is the correct answer
six.
The following sequence alignment between several species shows many c.pdf
The following sequence alignment between several species shows many conserved residues that
may take part in the catalytic function. The mutants R292G and R292A of the Ar-BVMO
monooxygenase enzyme showed very small residual activities compared to the wild type
enzyme. What is the catalytic role of this arginine residue considering the enzyme reaction
mechanism?
Solution
ANS:
Baeyer–Villiger monooxygenases (BVMOs):
It is a flavin-containing enzyme, which are mainly participates in specific catalytic Baeyer-
Villiger oxidation. In this reaction the carbonyl moiety of the substance was oxidized. This
protein helps in conversion of ketones into esters and lactones. Heteroatom oxidations (nitrogen
and sulfur) are also catalyzed by BVMO enzymes.
All BVMO enzymes can incorporate one oxygen atom into the substrate (oxygen atom inserts
into C–C bond) while converting the other oxygen into water.
Arginine importance inBVMO:
The protein arginine residue reacts with Alfa or Beta dicarbonyl compounds to form cyclic
derivatives.
The active sites of Arginine 292 residue can catalysis Ar-BVMO in Baeyer-Villiger reactions. so
due to this activity arginine is crucial for Baeyer-Villiger reactions.
The active site Arginine 292 is required for its Baeyer Villiger activity. If the amino acids
glycine or alanine are replaced in the place of arginine 292 the enzyme activity is greatly reduced
or no Baeyer-Villiger activity.
Mutants R292A and R292G have no BV activity while still maintaining their S- and N-
oxygenation capabilities..
Which of the following is a binary operation Why or why not(1) T.pdf
Which of the following is a binary operation? Why or why not?
(1) The natural numbers N under the usual addition operation.
(2) The natural numbers N under the usual subtraction operation.
(3) The integers Z under the absolute value operation.
Solution
1. N is a binary operation
2. N is not a binary operation
3. Z is a binary operation.
Why do genes that encode structural RNA molecules tend to be highly .pdf
Why do genes that encode structural RNA molecules tend to be highly conserved?
Solution
Conserved gene: A gene that has remained essentially unchanged throughout evolution.
Conservation of a gene indicates that it is unique and essential: There is not an extra copy of that
gene with which evolution can tinker, and changes in the gene are likely to be lethal.
RNAs assume diverse roles in numerous cellular processes, including serving as molecules to
store or transfer genetic information, acting as catalysts (ribozymes) to accelerate specific
chemical reactions, and functioning as gene-regulatory elements (riboswitches) to direct gene
expression. Comparable to protein molecules, many RNAs adopt complex three-dimensional
folds in order to function. Recent structural determinations of several large RNA molecules in
complex with their natural substrates or ligand cofactors have provided important insights into
the mechanisms of RNA folding, RNA-based molecular recognition, and RNA-based enzymatic
catalysis.
Comparative sequence analysis of related RNA molecules from different organisms has shown
that it is possible to distinguish conserved structural elements despite significant divergence in
the corresponding sequences. In many cases, covariant base-pair changes in helical stems are
easily accommodated at the structural level. Although, strongly conserved sequences have been
noted in many RNA molecules and are associated with structurally and functionally important
regions.
Eg: Bacterial RNase P, Introns – I & II
In the case of bacterial RNase P, the sequence variability is large enough to warrant a
classification scheme based on sequence level similarity alone.
In fact, until recently it was unclear whether RNA molecules of identical function but with
significant sequence differences would resemble each other structurally. Initial structural
analysis of the specificity domains of two different RNase P molecules, followed by comparisons
of various different group I introns and of the full-length RNA component of RNase P from two
bacteria, have shown that the core of these molecules is structurally conserved despite variable
peripheral elements. These demonstrate that different combinations of peripheral elements can
stabilize a particular conserved core scaffold, that the evolutionary pressure to preserve the core
RNA fold is strong.
Still the generality of this observation is unknown due to the paucity of determined structures of
homologous RNA molecules showing significant sequence level differences, it is possible to
anticipate that the core of homologous molecules will likely be conserved even when the
sequence variability is high..
Which group of terms is in the correct developmental sequence micro.pdf
Which group of terms is in the correct developmental sequence? microspore mother cell,
meiosis, megaspore, female gametophyte microspore mother cell, meiosis, microspore, pollen
grain megaspore, mitosis, female gametophyte, meiosis, endosperm mother cell all of the above
Solution
Ans: B option is correct i.e microspore mother cell meiosis microspore pollen grain..
Verify the given identity. (Simplify your answers completely.) 2 tan.pdf
Verify the given identity. (Simplify your answers completely.) 2 tan (x)/1 + tam^2(x) = sin (2x)
Show that the left hand side of the equation is equivalent to the right hand side. 2 tan(x)/1 +
tan^1(x)
Solution
L.H.S = 2tan(x) / 1+tan^2 x
but tanx = sinx/cosx
= 2tanx / (1 +sin^2 x /cos^2x ) ----> Answer in 1st box
=2tanx /(sin^2 x +cos^2 x) /cos^2x
= 2tanx . cos^2x -------------> Answer in 2nd box
= 2 sinx/cosx. cos^2 x ----> Answer in third box
= 2sinx cosx ->4th box
= sin(2x)
L.H.S = R.H.S
so hence proved.
what are the cells types involved in eczema and its healing process.pdf
what are the cells types involved in eczema and its healing process?
Solution
Eczema is generally called as dermatitis or inflamation of the skin. The skin cells or epidermis
are involved or affected by this kind of disease. Eczema affect to people in all age group, but it is
common in infants and young adult. The major symptoms includes itching, redness, blister and
weep on the skin of affected area. The phases of eczema includes acute, subacute and chronic.
The healing process of eczema occurs in three stages:.
What additional services are supported by SCTP but are not provided .pdf
What additional services are supported by SCTP but are not provided by TCP and UDP. Also,
what makes SCTP an ideal platform for carrying signaling messages?
Solution
2 problems in TCP which are not there in sctp
1)head of line blocking and 2) multihoming
1)head of line blocking: this is a problem where sender independent messages are sent over an
order-preserving TCP connection causes delivery of messages sent later to be delayed within a
receiver\'s transport layer buffers until an earlier lost message is retransmitted and arrives. These
later messages often established as independent telephone calls.
2)multihoming:here a host with multiple points of attachment to the Internet,does not want to
wait for a routing convergence to communicate critical messages to its peer communication
endpoint.These are dne for redundant processes..
The reason most cartels end or cease to be effective is Enforcement.pdf
The reason most cartels end or cease to be effective is: Enforcement of regulation that bans
cartels. The dominant member firm buys out the other firms. Consumers discover the
agreement and buy from other firms. The incentive to cheat on the cartel agreement.
Solution
D. The incentive to cheat on the cartel agreement..
Please produce an accurate research design model that dipicts a Pre-.pdf
Please produce an accurate research design model that dipicts a Pre-test/Post-test study where
200 participants were randomly assigned to one of four treatment groups.
Solution
There are four treatment groups and 200 participants available
Hence divide 200 into 4 equal groups.
Give each group of 50, one of the four treatments.
Before treatment find the weight and other health particulars about all.
After the treatment again find them.
Prepare a table for four different groups separately
Find mean, variance, std error for each group using df = 50-1 49
The difference is recorded for each group
Then for each group difference is calculated for average std deviation..
Nucleosomes and DNA in the new organisms below represent which .pdf
\"Nucleosomes\" and DNA in the new organisms below represent which lane on the gel? Like
those found in human cells (~200 bp nucleosomes with proteins loosely associated to linker
region) Larger nucleosomes (~400 bp in length) with proteins loosely associated to linker region
No nucleosomes are apparent (DNA may be totally naked or loosely associated to proteins)
Huge nucleosomes (~600 bp in length) with proteins loosely associated to linker region
Nucleosomes of same size as in human cells but with no evidence for the presence of loosely
associated proteins in the linker region
Solution
Answers:
c
Because the proteins are loosely associated therefore the DNA is able to travel farther in the gel.
d
again the proteins are loosely associated.
a
since there are no nucleosomes are apparent therefore the ink moves upto such an extent.
b
the proteins are loosely associated to linker region and hence the extended movement in the gel.
e
No evidence of any associated proteins indicates the band in lane e..
Unit 2- Research Aptitude (UGC NET Paper I).pdf
This slide describes the research aptitude of unit 2 in the UGC NET paper I.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
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Describe at least 3 adverse conditions caused by toxicants that enter.pdf
Describe at least 3 adverse conditions caused by toxicants that enter the pulmonary system.
Make sure you include how each condition adversely affects the pulmonary system.
Solution
pulmonary system brings oxygen into the body and remove toxic gases Nasal cavity and throat
of upper airway brings 21% oxygen into the body Trachea,bronchi and bronchioles a branching
structure of airways carries air into the body Balance between oxygen and carbon dioxide in the
blood regulates pulmonary respiration Pulmonary toxicity is due to chemotherapy for cancer and
several medicinal drugs lead to pulmonary toxicity RADIATION(radiotherapy)used for cancer
treatment may also be highly effective AIR POLLUTION effects the respiratory system greatly
and air quality has an impact on lungs.In addition to oxygen, air contains pollutants which are
very harmful to health Cells of lung tissue damaged by this air pollutants such as ozone,metals
and free radicals OZONE can cause damage to alveoli i.e.,air sac grapelike structure which is
located at the end of bronchioles.Blood vessels surround these alveoli and carry blood cells and
mainly exchange of oxygen and carbondioxide takes place due to alveoli by diffusion Cigarette
smoking,long term exposure to industrial chemicals are leading causes of pulmonary disease
Lungs face continual exposure to pathogens,they are vulnerable to viral,bacterial and fungal
infections Aerobic conditioning through physical excercising regularly ,no smoking,maintaining
health weight are major factors keep lung functioning effectively Toxic gases penetrate
functional layers of fluid to reach tissue Diffusion of these toxicants with non toxic gases
(nitrogen,oxygen,carbon dioxide and water vapour).Inhaled toxicants pass through lungs ,reach
capillaries and other tissues through blood Irritant gases such as chlorine,sulphur
dioxide,ozone,nitrogen and ammonia effect mostly the respiratory track and also effects sinus
cavity These irritant substances also enters peripheral portion of lung causes inflammation Acute
bronchitis caused by dusts,fumes from certain organic compounds and environmental irritants.
Correlation and regression are two closely related topics in statisti.pdf
Correlation and regression are two closely related topics in statistics. For each of the following
statements, indicate whether the statement is true of correlation, true of regression, true of both
correlation and regression, or true of neither correlation nor regression.
Solution
1) neither
2) regression
3) both correlation and regression.
As tawny crazy ants (Nylanderia fulva) invade the southern United Sta.pdf
As tawny crazy ants (Nylanderia fulva) invade the southern United States, they often displace
imported fire ants (Solenopsis invicta). After exposure to S. invicta venom, N. fulva applies
abdominal exocrine gland secretions to its cuticle. Bioassays reveal that detoxify S. these invicta
venom. Further, formic acid from N. fulva venom is the detoxifying agent. N. fulva exhibits this
detoxification behavior after conflict with a variety of ant species; however, it expresses it most
intensely after interactions with S. invicta. This behavior may have evolved in their shared South
American native range. The capacity to detoxify a major competitors venom probably
contributes substantially to its ability to displace s. invicta populations, making this behavior a
causative agent in the ecological transformation of regional arthropod assemblages.
Solution
Explanation:-
1. The scientific name of tawny crazy ants is Nylanderia fulva (N.fulva).
2. The N. fulva invade the Southern united states, and they have displaced Solenopsis invicta
(Fire ants).
3. When the S. invicta venom comes in contact with N. fulva, it secretes certain secretions form
the abdominal(relating to stomach) exocrine gland to its S.invicta cuticle(outer covering).
Bioassay (measurement of the concentration) reveals that the secretion from N.fulva detoxify
(removes toxin) from the S.invicta.
4. Usually, the formic acid is present in the secretion which acts as detoxifying agent.
5. N.fulva exhibits this detoxification behaviour with other ants as well but the intensity is most
with S. invicta. This may be due to their same habitat i.e. American native range.
6. The capacity of N.fulva to detoxify S.invicta shows its ability to displace S.invicta population..
According to the USA Snapshot “Knowing drug addicts” 40 of American.pdf
According to the USA Snapshot “Knowing drug addicts” 40% of Americans know somebody
who became addicted to a drug other than alcohol. Assuming this to be true, what is the
probability that out of a group of 20 randomly selected Americans: a. Exactly 10 know
somebody who became addicted to a drug? b. At most 10 know somebody who became addicted
to a drug? c. More than 10 know somebody who became addicted to a drug?
Solution.
A project has the following cash flows What is the projects NPV i.pdf
A project has the following cash flows: What is the project\'s NPV if the interest rate is $6%? 0 1
2 3 ($500) $100 $200 $310?
Solution
Present value of inflows=cash inflow*Present value of discounting factor(rate%,time period)
=100/1.06+200/1.06^2+310/1.06^3
=$532.62(Approx)
NPV=Present value of inflows-Present value of outflows
=$532.62-$500
=$32.62(Approx).
1.) What is the best definition of social inequalitysocial inequa.pdf
1.) What is the best definition of social inequality?
social inequality means that some people rely on food stamps and welfare more than others
social inequality means that some people have less income than others
social inequality describes a situation in which poverty and unemployment are persistent
problems
social inequality means that people have unequal access to valued resources in society
2.) Which of the following is true about intentional deception in research?
Researchers are exempt from lawsuits as long as they are using deception to learn about the
human condition
Participants could be harmed if they are not properly informed about the nature of the study
Research participants who intentionally deceive researchers may be banned from participating in
future research
All of the above
3.) A sociologist conducts research on the ways in which Hispanic American students are
historically underprivileged in the American education system. Which theoretical approach is the
sociologist using?
Conflict Theory
Ethnocentrism
Symbolic Interactionism
Structural Functionalism
4.) Karl Marx was a pioneer of the structural functionalism perspective of sociology
True
False
5.) When a researcher immerses her or himself in a culture over an extended period of time in
order to gain a close and intimate familiarity with a group of individuals and their practices, this
is called what?
Geneology
Participant observation
Cultural analysis
Ethnic Observation
6.) In his book Suicide, Durkheim sought to explain how religious affiliation related to suicide.
According to Durkheim, which of the following is true?
Suicide is the final step for religious conversion
Protestants are less likely than any other group to commit suicide
Catholic laws weakened social bonds among protestants
The looser social ties found in protestant religions lead to less social integration and higher rates
of suicide
7.) In order to be value-neutral, sociologists must be aware of their own moral judgments and
values, and avoid incorporating them into their research, their conclusions, and their teaching.
True
False
social inequality means that some people rely on food stamps and welfare more than others
social inequality means that some people have less income than others
social inequality describes a situation in which poverty and unemployment are persistent
problems
social inequality means that people have unequal access to valued resources in society
Solution
Ques-1: answer: social inequality means that people have unequal access to valued resources in
society
Reason:
Social inequality means that people have unequal access to valued resources, government
resources & government positions in society therefore, according to capitalism, libertarianism,
goods and government services must be equally distributed for social justice & social equality to
improve economy of the communities for instance, if 5% of the people should not hold entire
economy of the wealth. Therefore, it is crucial to .
What is the endothelium part of the tunica externa in arteries amp.pdf
What is the endothelium? part of the tunica externa in arteries ample squamous epithelium that
is in contact with the blood the internal elastic membrane that has fenestrae concentric \"holey\"
(laminae) of elastic connective tissue interspersed between smooth muscle layers of the tunica
media Blood vessels of the large arteries and veins that are greater than 1mm in diameter are
called the lamina propria anastomoses fenestrae metarterioles vasavasorum sinusoids Select
all of the following that are TRUE of muscular arteries. largest diameter arteries subclavian
artery is an example the tunica media has more smooth muscle than elastic fibers they are also
referred to as distributing arteries they contain both the internal elastic membrane and the
external elastic membrane proportionately, has the thickest tunica media of ail vessels common
iliac artery is an example Find the correct statement regarding our capillaries. capillaries that
have tight junctions between endothelial cells, making them less permeable to large molecules
than other capillary types are referred to as sinusoidal capillaries or discontinuous capillaries
continuous capillaries are found in the endocrine glands where large molecules cross the
capillary walls fenestrated capillaries are the most common type of capillaries the distal portion
of the metarteriole that has no smooth muscle is called a thoroughfare channel Select all of the
TRUE statements regarding our blood vessels. arterioles can be called our \"resistance vessels\"
because this is where blood encounters its creates! decline in blood pressure b a venous
anastomosis is where two or more veins dram an area in common there are about 10 billion
capillaries. yet only about 5% of our blood is in them at any one time venules have only the
tunica internal and the tunica external, they have NO tunica media about 40% of the blood is in
veins at any given time capillaries are known as blood reservoirs for extra blood veins of the
appendages that are greater than 2 mm in diameter have valves made of fold in the intima and are
similar to shape and function of the semilunar valves compared to their companion arteries,
veins have a very thick tunica intima which contains an internal elastic membrane, a thin tunica
mod a with no external elastic membrane and a vety tunica adventitia (externa)
Solution
1. Endothelium is:
b. simple squamous cells that is in contact with the blood
2. Vasa vasorum
3. Tunica media has more smooth muscles than elastic fibers
They are also called distributing artery
4. The distal portion of the metarteriole that has no smooth muscle is called a thoroughfare
channel.
Which statement is true (more than one may be selected)a) Substan.pdf
Which statement is true? (more than one may be selected)
a) Substances that release protons when they dissolve in water are termed bases and result in a
pH higher than 7.
b) Substances that release protons when they dissolve in water are termed acids and result in a
pH higher than 7.
c) Bases (alkali) are any aqueous environments where the proton content decreases and the pH
increases.
d) Acids are any aqueous environments where the proton content increases and the pH decreases.
e) Substances that release protons when they dissolve in water are termed acids and result in a
pH lower than 7.
Solution
Ans. Which statement is true? (more than one may be selected)
a) Substances that release protons when they dissolve in water are termed bases and result in a
pH higher than 7. Incorrect- it is an acid
b) Substances that release protons when they dissolve in water are termed acids and result in a
pH higher than 7. Incorrect- it is “pH lower than 7”
c) Bases (alkali) are any aqueous environments where the proton content decreases and the pH
increases.
d) Acids are any aqueous environments where the proton content increases and the pH decreases.
e) Substances that release protons when they dissolve in water are termed acids and result in a
pH lower than 7. Correct option
Correct option: E
Explanation: Acid is a molecule or ion that donates proton.
An aqueous environment may facilitate acceptance or release of proton to/from a molecule, but
the environment can’t be termed an acid or base because it does not represent a specific molecule
or ion. For example, adding HCl to NaCl solution (say, normal saline) cause donation of proton
from HCl molecule to the solution. Here, NaCl- the aqueous environment, accept a proton- BUT
NaCl solution is NOT a base because it does NOT represent a specific molecule or ion. So, for
being an acid or base- it must be a molecule or ion, NOT an aqueous environment. Though H2O
(water) alone can act as acid or base depending on the acid/base added to it; but the term
‘aqueous environment’ is NOT exclusive for water. So, it can’t be treated as an acid or base.
Therefore, options C, D are incorrect.
pH = - log [H]. Addition of an acid to water (solvent) cause an increase in [H+] ions in water
because acid donates proton to water. Increase in [H+] lowers the pH , i.e. pH is reduced below
7.0; say pH lowered from 7.0 to 4.0. Thus “Substances that release protons when they dissolve in
water are termed acids and result in a pH lower than 7.”
So, options A, B are incorrect..
Write down the reaction for the catabolism of ATP Does that occ.pdf
Write down the reaction for the catabolism of ATP: Does that occur by dehydration or
hydrolysis? Is energy released or required when ATP is broken down?
Solution
Answer:
ATP catabolism:
ATP + 2H2O ----------> ADP + Pi (inorganic phosphate) + Energy (G = -30.5 kJ/mol of ATP)
The above reaction is hydrolysis. It is an energy yielding process.
ATP hydrolysis, water is used to split apart ATP to create ADP (adenosine diphosphate) to get
energy..
48. The figure above shows the graph of a polynomial function f. What.pdf
48. The figure above shows the graph of a polynomial function f. What is the least possible
degree of f (A) Two (B) Three (C) Four (D) Five (E) Six
Solution
This has three bumps , it\'s an even-degree polynomial (being \"up\" on both ends), and the zero
in the middle is an even-multiplicity zero. Also, the bump in the middle looks flattened, so this is
probably a zero of multiplicity 4 or more. With the two other zeroes looking like multiplicity-1
zeroes, this is a likely graph for a sixth-degree polynomial.
Option E is the correct answer
six.
The following sequence alignment between several species shows many c.pdf
The following sequence alignment between several species shows many conserved residues that
may take part in the catalytic function. The mutants R292G and R292A of the Ar-BVMO
monooxygenase enzyme showed very small residual activities compared to the wild type
enzyme. What is the catalytic role of this arginine residue considering the enzyme reaction
mechanism?
Solution
ANS:
Baeyer–Villiger monooxygenases (BVMOs):
It is a flavin-containing enzyme, which are mainly participates in specific catalytic Baeyer-
Villiger oxidation. In this reaction the carbonyl moiety of the substance was oxidized. This
protein helps in conversion of ketones into esters and lactones. Heteroatom oxidations (nitrogen
and sulfur) are also catalyzed by BVMO enzymes.
All BVMO enzymes can incorporate one oxygen atom into the substrate (oxygen atom inserts
into C–C bond) while converting the other oxygen into water.
Arginine importance inBVMO:
The protein arginine residue reacts with Alfa or Beta dicarbonyl compounds to form cyclic
derivatives.
The active sites of Arginine 292 residue can catalysis Ar-BVMO in Baeyer-Villiger reactions. so
due to this activity arginine is crucial for Baeyer-Villiger reactions.
The active site Arginine 292 is required for its Baeyer Villiger activity. If the amino acids
glycine or alanine are replaced in the place of arginine 292 the enzyme activity is greatly reduced
or no Baeyer-Villiger activity.
Mutants R292A and R292G have no BV activity while still maintaining their S- and N-
oxygenation capabilities..
Which of the following is a binary operation Why or why not(1) T.pdf
Which of the following is a binary operation? Why or why not?
(1) The natural numbers N under the usual addition operation.
(2) The natural numbers N under the usual subtraction operation.
(3) The integers Z under the absolute value operation.
Solution
1. N is a binary operation
2. N is not a binary operation
3. Z is a binary operation.
Why do genes that encode structural RNA molecules tend to be highly .pdf
Why do genes that encode structural RNA molecules tend to be highly conserved?
Solution
Conserved gene: A gene that has remained essentially unchanged throughout evolution.
Conservation of a gene indicates that it is unique and essential: There is not an extra copy of that
gene with which evolution can tinker, and changes in the gene are likely to be lethal.
RNAs assume diverse roles in numerous cellular processes, including serving as molecules to
store or transfer genetic information, acting as catalysts (ribozymes) to accelerate specific
chemical reactions, and functioning as gene-regulatory elements (riboswitches) to direct gene
expression. Comparable to protein molecules, many RNAs adopt complex three-dimensional
folds in order to function. Recent structural determinations of several large RNA molecules in
complex with their natural substrates or ligand cofactors have provided important insights into
the mechanisms of RNA folding, RNA-based molecular recognition, and RNA-based enzymatic
catalysis.
Comparative sequence analysis of related RNA molecules from different organisms has shown
that it is possible to distinguish conserved structural elements despite significant divergence in
the corresponding sequences. In many cases, covariant base-pair changes in helical stems are
easily accommodated at the structural level. Although, strongly conserved sequences have been
noted in many RNA molecules and are associated with structurally and functionally important
regions.
Eg: Bacterial RNase P, Introns – I & II
In the case of bacterial RNase P, the sequence variability is large enough to warrant a
classification scheme based on sequence level similarity alone.
In fact, until recently it was unclear whether RNA molecules of identical function but with
significant sequence differences would resemble each other structurally. Initial structural
analysis of the specificity domains of two different RNase P molecules, followed by comparisons
of various different group I introns and of the full-length RNA component of RNase P from two
bacteria, have shown that the core of these molecules is structurally conserved despite variable
peripheral elements. These demonstrate that different combinations of peripheral elements can
stabilize a particular conserved core scaffold, that the evolutionary pressure to preserve the core
RNA fold is strong.
Still the generality of this observation is unknown due to the paucity of determined structures of
homologous RNA molecules showing significant sequence level differences, it is possible to
anticipate that the core of homologous molecules will likely be conserved even when the
sequence variability is high..
Which group of terms is in the correct developmental sequence micro.pdf
Which group of terms is in the correct developmental sequence? microspore mother cell,
meiosis, megaspore, female gametophyte microspore mother cell, meiosis, microspore, pollen
grain megaspore, mitosis, female gametophyte, meiosis, endosperm mother cell all of the above
Solution
Ans: B option is correct i.e microspore mother cell meiosis microspore pollen grain..
Verify the given identity. (Simplify your answers completely.) 2 tan.pdf
Verify the given identity. (Simplify your answers completely.) 2 tan (x)/1 + tam^2(x) = sin (2x)
Show that the left hand side of the equation is equivalent to the right hand side. 2 tan(x)/1 +
tan^1(x)
Solution
L.H.S = 2tan(x) / 1+tan^2 x
but tanx = sinx/cosx
= 2tanx / (1 +sin^2 x /cos^2x ) ----> Answer in 1st box
=2tanx /(sin^2 x +cos^2 x) /cos^2x
= 2tanx . cos^2x -------------> Answer in 2nd box
= 2 sinx/cosx. cos^2 x ----> Answer in third box
= 2sinx cosx ->4th box
= sin(2x)
L.H.S = R.H.S
so hence proved.
what are the cells types involved in eczema and its healing process.pdf
what are the cells types involved in eczema and its healing process?
Solution
Eczema is generally called as dermatitis or inflamation of the skin. The skin cells or epidermis
are involved or affected by this kind of disease. Eczema affect to people in all age group, but it is
common in infants and young adult. The major symptoms includes itching, redness, blister and
weep on the skin of affected area. The phases of eczema includes acute, subacute and chronic.
The healing process of eczema occurs in three stages:.
What additional services are supported by SCTP but are not provided .pdf
What additional services are supported by SCTP but are not provided by TCP and UDP. Also,
what makes SCTP an ideal platform for carrying signaling messages?
Solution
2 problems in TCP which are not there in sctp
1)head of line blocking and 2) multihoming
1)head of line blocking: this is a problem where sender independent messages are sent over an
order-preserving TCP connection causes delivery of messages sent later to be delayed within a
receiver\'s transport layer buffers until an earlier lost message is retransmitted and arrives. These
later messages often established as independent telephone calls.
2)multihoming:here a host with multiple points of attachment to the Internet,does not want to
wait for a routing convergence to communicate critical messages to its peer communication
endpoint.These are dne for redundant processes..
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The reason most cartels end or cease to be effective is: Enforcement of regulation that bans
cartels. The dominant member firm buys out the other firms. Consumers discover the
agreement and buy from other firms. The incentive to cheat on the cartel agreement.
Solution
D. The incentive to cheat on the cartel agreement..
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Please produce an accurate research design model that dipicts a Pre-test/Post-test study where
200 participants were randomly assigned to one of four treatment groups.
Solution
There are four treatment groups and 200 participants available
Hence divide 200 into 4 equal groups.
Give each group of 50, one of the four treatments.
Before treatment find the weight and other health particulars about all.
After the treatment again find them.
Prepare a table for four different groups separately
Find mean, variance, std error for each group using df = 50-1 49
The difference is recorded for each group
Then for each group difference is calculated for average std deviation..
Nucleosomes and DNA in the new organisms below represent which .pdf
\"Nucleosomes\" and DNA in the new organisms below represent which lane on the gel? Like
those found in human cells (~200 bp nucleosomes with proteins loosely associated to linker
region) Larger nucleosomes (~400 bp in length) with proteins loosely associated to linker region
No nucleosomes are apparent (DNA may be totally naked or loosely associated to proteins)
Huge nucleosomes (~600 bp in length) with proteins loosely associated to linker region
Nucleosomes of same size as in human cells but with no evidence for the presence of loosely
associated proteins in the linker region
Solution
Answers:
c
Because the proteins are loosely associated therefore the DNA is able to travel farther in the gel.
d
again the proteins are loosely associated.
a
since there are no nucleosomes are apparent therefore the ink moves upto such an extent.
b
the proteins are loosely associated to linker region and hence the extended movement in the gel.
e
No evidence of any associated proteins indicates the band in lane e..
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