a) What is the Chromosome Theory of Inheritance and how was it determined? (SHOW WORK
& EXPLAIN)
b) Describe the contributions of Sutton, Boveri, McClung, Stevens, Wilson and Morgan to
determining that genetic information is carried on chromosomes. (SHOW WORK & EXPLAIN)
c) Describe the XX-XO, XX-XY and ZZ-ZW mechanisms of sex determination and give
examples of organisms that use each mechanism. (SHOW WORK & EXPLAIN)
d) How does the environment affect sexual phenotype in turtles and alligators? (SHOW WORK
& EXPLAIN)
Solution
a) Chromosomal Theory of Inheritance is a fundamental theory of genetics.Thomas Hunt
Morgan establishes the Chromosomal theory of heredity.In 1907 Morgan was based on
experiments by using Drosphila melanogaster or fruit flies. Drosphila have red eyes.Red eye
colour is dominant.Morgan discovered a recessive mutation that caused white eyes.
B) Boveri-Sutton chromosome theory identifies chromosomes as the carriers of genetic material
which states that chromosomes carry the unit of heredity.
McClung : A zoologist studied the behaviour of chromosomes in the sex cells and discovered the
sex determining chromosome.
Stevens: Stevens was interested in the process of sex determination.
Morgan proposed the Chromosomal Theory of Heredity by using a common fruit fly.
C) Sex determination is a biological system that determines the development of sexual
characteristics.
XX-XO types : In this type females have two homomorphic sex chromosomes XX ,male have
one sex chromosome XO. This type of sex determination seen in cockroaches.
XX-XY : This sex determination occurs in human beings.Females have two identical
homologous sex chromosome XX and males have XY.
ZZ-ZW : Females carry two types of sex chromosome ZW heterogametic and males carry ZZ
homogametic. This type of sex determination occurs in fishes reptiles.
D) Sex determination in reptiles are classified into two categories that is genotypic sex
determination and temperature dependent. Environmental sex determination in which
temperature is a crucial factor in embryonic development. In many turtle species eggs from
cooler nests hatch males and from warmer nests hatch the females..
Heredity or Hereditary is the process of passing the traits and characteristics from parents to offsprings.
The offspring cells get their features and characteristics aka genetic information from their mother and father.
how does the evolution of sex chromosomes takes places over ages.
what are the triggering agents leading to the changes that occur in sex chromosomes.
a Adynamic view of sex chromosomes- evolution --historical insights and future perspective.
some of the major milestones in the history of evolution of sex chromosomes.
Heredity or Hereditary is the process of passing the traits and characteristics from parents to offsprings.
The offspring cells get their features and characteristics aka genetic information from their mother and father.
how does the evolution of sex chromosomes takes places over ages.
what are the triggering agents leading to the changes that occur in sex chromosomes.
a Adynamic view of sex chromosomes- evolution --historical insights and future perspective.
some of the major milestones in the history of evolution of sex chromosomes.
Sex determination is important to distinguish an organism as male, female and hermaphrodite. XX-XO sex determination is one type of determination which is found in plants and insects
Sex-determination and Sex-linked Inheritance.pptxSeemaGaikwad15
The sexually reproducing organisms are classified into two types such as monoecious (hermaphrodite) and dioecious. In monoecious organisms, both male and female gametes (sex cells) are produced by a single individual. The organisms in which both male and female gametes are produced by different individuals are called dioecious. Living organisms, with a very few exceptions, are differentiated into male and female individuals. The sexes of the individuals are genetically determined.
The biological system that determines the development of sexual characteristics in an organism is called sex determination.
There are two different systems of sex determination- Chromosomal sex determination and Non-genetic sex determination.
A storm warning siren emits sound uniformly in all directions. Along.pdffootstatus
A storm warning siren emits sound uniformly in all directions. Along a line that is drawn radially
outward from the sound source (the siren) determine the positions of two points, 0.77 m apart,
such that the intensity level at one point is 4.12 dB greater than the intensity level at the other.
point closer to siren: m
point farther from siren: m
Solution
Power of source = P
INtensity at r1 = I1 = P/4*pi*(r1)^2
Intensity at r2 = I2 = P/4*pi*(r2)^2
Now, 10log(I1/I2) = 4.12
20log(r2/r1) = 4.12
r2/r1 = 1.606
but r2 - r1 = 0.77
so r2 = 1.606(r2 - 0.77) = 1.606 r2 - 1.2366
r2 = 2.04 m
r1 = 1.27 m.
Without using cut, write a predicate split3 that splits a list of i.pdffootstatus
With regards to eipdemiology, match the statements in the right column with words or phrases
in the left column. The first reported patient in disease outbreak is called Includes the typical
symptoms of the disease Disease is constantly present in the population Disease producing
microbe Many people acquire disease in an area in a short time The study of the clinical history
of disease Contaminated inanimate objects One only gets this disease when the body is
weakened. Humans harbor pathogen but is not sick nor have symptoms Insects carry pathogen
and may carry it to person\'s good You get an infection from a member with food borne
infection Continual source of infection Person to person contact like STDs The ratio of number
of deaths over the number of folks that are sick Transmission of disease by an arthropod\'s bite
The ratio of the # of folks sick over total population The occurrence of new diseases cases
within defined population Insect and other arthropods are examples Pathoden Reservoir
Epidemiology Index case Case definition Epidemic Endemic Direct contact Incidence
Fomites Vectors Mechanical transmission Biological transmission Carriers Secondary cases
Morbidity rate Mortality rate Non-communicable disease Match the statements in the right
column with words or phrases in the left column. Colony Streak-plate technique Standard Plate
counts Iodine Dimerizes the nucleic acid Large number of bacterial cells on medium visible to
the naked eyes.
Solution
Index Case Case Definition Endemic Pathogen Epidemic Epidemology Fomites Secondary
Cases Carriers Mechanical Transmission Non Communicable Disease Reservoir Direct Contact
Mortality Rate Biological Transmission Morbidity Rate Incidence Vectors.
More Related Content
Similar to a) What is the Chromosome Theory of Inheritance and how was it deter.pdf
Sex determination is important to distinguish an organism as male, female and hermaphrodite. XX-XO sex determination is one type of determination which is found in plants and insects
Sex-determination and Sex-linked Inheritance.pptxSeemaGaikwad15
The sexually reproducing organisms are classified into two types such as monoecious (hermaphrodite) and dioecious. In monoecious organisms, both male and female gametes (sex cells) are produced by a single individual. The organisms in which both male and female gametes are produced by different individuals are called dioecious. Living organisms, with a very few exceptions, are differentiated into male and female individuals. The sexes of the individuals are genetically determined.
The biological system that determines the development of sexual characteristics in an organism is called sex determination.
There are two different systems of sex determination- Chromosomal sex determination and Non-genetic sex determination.
A storm warning siren emits sound uniformly in all directions. Along.pdffootstatus
A storm warning siren emits sound uniformly in all directions. Along a line that is drawn radially
outward from the sound source (the siren) determine the positions of two points, 0.77 m apart,
such that the intensity level at one point is 4.12 dB greater than the intensity level at the other.
point closer to siren: m
point farther from siren: m
Solution
Power of source = P
INtensity at r1 = I1 = P/4*pi*(r1)^2
Intensity at r2 = I2 = P/4*pi*(r2)^2
Now, 10log(I1/I2) = 4.12
20log(r2/r1) = 4.12
r2/r1 = 1.606
but r2 - r1 = 0.77
so r2 = 1.606(r2 - 0.77) = 1.606 r2 - 1.2366
r2 = 2.04 m
r1 = 1.27 m.
Without using cut, write a predicate split3 that splits a list of i.pdffootstatus
With regards to eipdemiology, match the statements in the right column with words or phrases
in the left column. The first reported patient in disease outbreak is called Includes the typical
symptoms of the disease Disease is constantly present in the population Disease producing
microbe Many people acquire disease in an area in a short time The study of the clinical history
of disease Contaminated inanimate objects One only gets this disease when the body is
weakened. Humans harbor pathogen but is not sick nor have symptoms Insects carry pathogen
and may carry it to person\'s good You get an infection from a member with food borne
infection Continual source of infection Person to person contact like STDs The ratio of number
of deaths over the number of folks that are sick Transmission of disease by an arthropod\'s bite
The ratio of the # of folks sick over total population The occurrence of new diseases cases
within defined population Insect and other arthropods are examples Pathoden Reservoir
Epidemiology Index case Case definition Epidemic Endemic Direct contact Incidence
Fomites Vectors Mechanical transmission Biological transmission Carriers Secondary cases
Morbidity rate Mortality rate Non-communicable disease Match the statements in the right
column with words or phrases in the left column. Colony Streak-plate technique Standard Plate
counts Iodine Dimerizes the nucleic acid Large number of bacterial cells on medium visible to
the naked eyes.
Solution
Index Case Case Definition Endemic Pathogen Epidemic Epidemology Fomites Secondary
Cases Carriers Mechanical Transmission Non Communicable Disease Reservoir Direct Contact
Mortality Rate Biological Transmission Morbidity Rate Incidence Vectors.
write a MATLAB GUI program that implements an ultrasound image viewi.pdffootstatus
Write a Java application that involves the following functions: A non-recursive method
intPower1(int n, int pow). The first argument is a number that is to be raised to a (non-negative)
power, and the second argument is the power. Do not use any methods of class Math. A
recursive method intPower2(int n, int pow) with the same functionality as above. Put both
methods into one class. The program should ask the user to input the numbers n and pow and
output the results. Name the project Hw4_2
Solution
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package chegg;
import java.util.Scanner;
public class Power {
int power1(int n,int pow)
{
int res = 1;
for(int i=1;i<=pow;i++)
res = res*n;
return res;
}
int power2(int n,int pow)
{
if(pow==0)
return 1;
if(pow==1)
return n;
return n*power2(n,pow-1);
}
public static void main(String[] args)
{
Power p = new Power();
int n,pow;
Scanner input = new Scanner(System.in);
System.out.println(\"Input the value of n : \");
n = input.nextInt();
System.out.println(\"Input the value of pow : \");
pow = input.nextInt();
System.out.println(\"Result of iterative function is : \" + p.power1(n, pow));
System.out.println(\"Result of recursive function is : \" + p.power2(n, pow));
}
}.
With regards to eipdemiology, match the statements in the right colum.pdffootstatus
Why might it be necessary for an organization to alter its targeting strategy over time? Use a
specific organizational example in your response.
Solution
the above said is correct, and some times they need to rethink about their decisions. the reason
the complete picture and the situations are different from our assumptions. so, when ever we
thinks that we took a wrong decision, there is nothing wrong to rethink about the strategy.
there are many examples in the history; one is from Bajaj two wheelers in India.
initially they only stick for producing scooters, and they does not go with bikes. but later they
changed their openion and started the production of bikes. they are the third largest two wheeler
seller in Indian market.
so,when the time comes one has to evaluate and analyse his strategies and if he finds any gaps or
problems he can change them..
Which of these are temperamental dimensionsoptionsAvoidant, re.pdffootstatus
Which of the following signals induces the disassembly of the nuclear lamina?
Phosphorylation by a mitotic kinase
Activation of a small GTPase
Fragmentation of the nuclear envelope
A conformational change in lamin A
DNA condensation
Solution
fragmentation of nuclear envelope signals induces the disassembly of the nuclear lamina.
Which of the following can cause OLS estimators to be biased Hetero.pdffootstatus
Which of the following best defines transaction persistence?
A. Database transactions should be all or nothing to protect the integrity of the database.
B. The database should be in a consistent state, and there should not be a risk of integrity
problems.
C. The database should be the same before and after a transaction has occurred.
D. Databases should be available to multiple users at the same time without endangering the
integrity of the data
Solution
B. Transaction persistence means that the state of the database security is the same after a
transaction has occurred. In addition, there is no risk of integrity problems. Answer A is incorrect
because it does not define transaction persistence. Answer C is wrong because transaction
persistence does not state that the database should be the same before and after a transaction.
Answer D is incorrect because even though databases should be available to multiple users at the
same time without endangering the integrity of the data, that fact is not a definition of transaction
persistence.
what is the relationship between capsular type of H. influenza and p.pdffootstatus
What is the name of the variable which contains a list of the arguments passed in to a script
during execution, along with the name of the script? Which command will return the length of
the str variable \"x\"? size(x) len(x) length(x) nchar(x) Which command will return the length
of the list variable \"y\"? size(y) len(y) length(y) nrow(y)
Solution
20.which command will return the length of the str variable \"x\"
Answer:len(x)
The method len() returns the length of the string
21.which command will return the length of the list variable \"y
Answer:len(y)
this method Gives the total length of the list..
What is the curve classification of ...I am working on the analysi.pdffootstatus
What is going to be the output of the following program: #include int main(void){int a = 0, b =
0; struct department{int did; int gst; int ugst;}; struct university{int state_rank; char
name[10]; struct department ndpt[3];}NDSU; NDSU = {1, {\'N\', \'D\', \'S\', \'U\'}, {1, 10, 200,
2, 20, 300, 3, 30, 400}}; for(int i = 0; i
Solution
There is an error in the program. NDSU is a data type(user defined), and therefore cannot be
initialized.
But after a minute modifications, the output is explained in the comments part:
#include
int main(void)
{
int a = 0, b = 0;
struct department //Declares a structure department.
{
int did;
int gst;
int ugst;
};
struct university //Declares a structure university.
{
int state_rank;
char name[10];
struct department ndpt[3];
}NDSU = {1, {\'N\', \'D\', \'S\', \'U\'}, {1, 10, 200, 2, 20, 300, 3, 30, 400}}; //Initializes the
university structure.
//State_rank = 1.
//name = \"NDSU\".
//With 3 departments.
//Department 1: did = 1, gst = 10, ugst = 200.
//Department 2: did = 2, gst = 20, ugst = 300.
//Department 3: did = 3, gst = 30, ugst = 400.
for(int i = 0; i < 3; i++) //For each department value.
{
a = a + NDSU.ndpt[i].gst; //Sum up the gst values to a. 10 + 20 + 30
b = a + NDSU.ndpt[i].ugst; //Sum of a and ugst value is overwritten to b. First time its, 10 +
200. Second time its, 30 + 300. Finally its 60 + 400 = 460 is stored.
}
printf(\"%d and %d\ \", a/3, b/3); //Prints the average gst, and ugst values: 20, and 153.
return 0;
}.
Water is essential to all living organisms. Discuss THREE properties .pdffootstatus
Verified the following trig identities and show all work.
csc4 t-cot4 t = csc2t+cot2 t
cosB/1-sinB = secB+tanB
1/csc y-cot y = csc y + cot y
Cot 4u-1/cot 4u+1 = 1-tan 4u/1+tan 4u
(sec t + tan t)2 = 1+sin t / 1-sin t
Cos3x –sin3x /cos x-sin x = 1+sin x cos x
Csc x /1+csc x – csc x/ 1-csc x= 2sec2 x
(1-tan2 theta)2 = sec4 theta – 4 tan2 theta
Solution
1)csc4t-cot4t
a2-b2=(a-b)(a+b)
=(csc2t-cot2t)(csc2t+cot2t)
=1*(csc2t+cot2t)
=csc2t+cot2t
2)cosB/1-sinB
multiply and divide by (1+sinB)
=cosB(1+sinB)/((1-sinB)(1+sinB))
=cosB(1+sinB)/(1-sin2B)
=cosB(1+sinB)/(cos2B)
=(1+sinB)/cosB
=(1/cosB)+(sinB/cosB)
=secB+tanB.
tree to answer question 2. n Arabidopsis arenosa Arabidopsis halleri .pdffootstatus
Toxaphene is an insecticide that has been identified as a pollutant in the Great Lakes ecosystem.
To investigate the effect of toxaphene exposure on animals, groups of rats were given toxaphene
in their diet. The article “Reproduction Study of Toxaphene in the Rat” (J. of Environ. Sci.
Health, 1988: 101-126) reports weight gains (in grams) for rats given a low dose (4 ppm) and for
control rats whose diet did not include the insecticide. The sample standard deviation for 23
female control rats was 32 g and for 20 female low-dose rats was 54 g. Does this data suggest
that there is more variability in low-dose weight gains than in control weight gains? Assuming
normality, carry out a test of hypotheses at significance level .05
For this problem, make a two-sided t interval & perform an F test for the ratio of variance, &
create a confidence interval for the ratio of the variance.
Solution.
The plant pathogen Xylella fastidiosa is a gram negative that attach.pdffootstatus
The number of passengers (including the driver) in cars that cross a certain bridge is a random
variable Y having mean E(Y) = 2.7 and variance V(Y) = 1.2. The toll on the bridge is $3.00 per
car plus $0.50 per person in the car. The mean and variance of the total amount of money that is
collected from a car that crosses the bridge are:
(a) mean = $8.60, variance = $.30
(b) mean = $4.35, variance = $3.30
(c) mean = $8.60, variance = $.60
(d) mean = $4.35, variance = $.30
(e) mean = $1.35, variance = $.30
Solution
The amount they pay in terms of Y is
A = 3.00 + 0.50Y
Thus,
E(A) = E(3.00 + 0.50Y) = 3.00 + 0.50E(Y) = 3.00 + 0.50*2.7
E(A) = 4.35
Also,
Var(A) = Var(3.00 + 0.50Y) = 0.50^2 Var(Y) = 0.50^2 * 1.2
Var(A) = 0.30
Thus, it is OPTION D. [ANSWER, D].
The region labeled with the letter B is transcribed into mRNA True.pdffootstatus
the projected number of households( in millions) with digital video records thats allow viewers
to record shows onto a server and skip commercials are in the following 5. The projected number
of households (in millions) with digital video recorders that allow viewers to record shows onto a
server and skip commercials are given in the following table: Year Households 31.2 a) Let t = 0
correspond to the beginning of 2006, and use QuadReg to find a second- 2010 130.2 2006 2008
71.6 2009 97.0 2007 49.0 degree polynomial regression model based on the given data. (2 pts) b)
Using your regression equation, find the number of households in 2008. (2 pts) c) Using your
regression equation, find the number of households in 2013. (2 pts)
Solution
a)
Using technology to get the best quadratic fit,
y^ = 2.4t^2 + 15t + 31.4 [answer]
where y^ = predicted number of housholds.
b)
Plugging in t = 2 to y^ above,
y^ = 2.4(2)^2 + 15(2) + 31.4 = 71 [answer]
c)
Plugging in y = 7 above,
y^ = 2.4(7)^2 + 15(7) + 31.4 = 254 [answer].
The positron decay of 15 o goes directly to the ground state of,15 N;.pdffootstatus
The plant pathogen Xylella fastidiosa is a gram negative that attaches to surfaces and forms a
biofilm in host plants. Which of the following typically triggers an immune response?
a)
Pili
b)
Teichoic
acid
c)
LPS
d)
EPS
Solution
Ans--(C) : LPS
Lipopolysaccharide (LPS) is the predominant macromolecule displayed on the cell surface of
Gram-negative bacteria and thus mediates bacterial interactions with the environment and
potential hosts Utilizing a mutant that produces truncated O antigen we present results that link
this LPS structural alteration to a significant decrease in the attachment of X,Xylella fastidiosa is
a plant pathogenic bacterium that lives inside the host xylem vessels where it forms biofilm
believed to be responsible for disrupting the passage of water and nutrients..
QuestionProblem 1 In a source file carddeck.cpp, provide an impl.pdffootstatus
Question 8 2
Solution
The term is economies of scale
Economies of scale refer to the cost advantages that a firm can enjoy when the volume of
production increases, in the long run. Economies of scale mean that costs per unit of output
decrease when output is expanded while output proportions are kept constant..
provide a brief definition of self assemblySolutionMolecular s.pdffootstatus
Prove that the chromatic number of a cycle graph_n of odd length equals 3.
Solution
Chromatic Number: The chromatic number of a graph G is the least k for which a k-coloring of
G exists.
First note that the chromatic number must be at least 2 for any graph which has an edge in it,
including all cycles. We now prove the theorem by induction on n. We will consider two base
cases, C3 and C4. C3 is isomorphic to K3 which has chromatic number 3. C4 can be colored
with two colors by giving opposing corners of the square the same color. For n > 4, we can take
a coloring of Cn-2 and insert 2 adjacent vertices and edges and then color the new vertices
appropriately to get a coloring of Cn. Thus the chromatic number of Cn is not greater than that of
Cn-2. In the case where n is odd, note that if Cn had chromatic number 2, we could remove two
adjacent vertices and edges to get a 2-coloring of Cn-2 which contradicts the inductive
hypothesis since n-2 must be odd if n is odd. Therefore for odd numbers the chromatic number
will be 2+1 = 3..
Match the Statements below with bacteriological tests. Eosin-methyle.pdffootstatus
Many non-scientists have focused their criticism of evolution on the fact that even scientists have
criticized Darwin’s theory. Is this true? In what respect did Darwin get it wrong, or maybe in
what way has Darwin’s theory been modified?
Solution
The \"Origin of Species\" of Darwin described about the heritable change in an organism over a
period of time due to natural selection. Scientists also criticized of Danwin\'s opinion on use and
disuse theory. At the time of Origin of species, Darwin do not know about the existed of
microorganisms and his theory of tree of life became wrong. Pangenesis theory of Darwin also
became wrong as he do not know anything about genetics..
Many non-scientists have focused their criticism of evolution on the.pdffootstatus
M2-13 Identifying Transactions and Preparing Journal Entries [LO 2-3] J.K. Builders was
incorporated on July 1 a. Received $83,000 cash invested by owners and issued common stock.
b. Bought an unused field from a local farmer by paying $73,000 cash. As a construction site for
smaller projects, it is estimated to be worth $78,000 to J.K. Builders c. Alumber supplier
delivered lumber supplies to J.K. Builders for future use. The lumber supplies would have
normally sold for $23,000, but the supplier gave J.K. Builders a 10 percent discount. J.K.
Builders has not yet received the $20,700 bill from the supplier d. Borrowed $38,000 from the
bank with a plan to use the funds to build a small workshop in August. The loan must be repaid
in two years. e. One of the owners sold $23,000 worth of his common stock to another
shareholder for $24,000 Prepare journal entries for the above transactions from the first month of
business. (If no entry is required fora transactionlevent, selec \"No Journal Entry Required\" in
the first account field.)
Solution
Ref Account Debit Credit a Cash 83000 Common stock 83000 b Land 73000 Cash
73000 c Lumber supplies 20700 Accounts payable 20700 d cash 38000 Notes
payable 38000 e No entry.
It has been observed that F_st increases with the distance between po.pdffootstatus
iQ2 In a study about children?s pocket money, two samples of schoolchildren were asked how
much money they received each week. In one sample, of size 80, the mean is ?6.65. In the other
sample, of size 41, the mean is pound 8.21. Calculate the mean based on the combined sample.
Give your answer correct to two decimal places. (Do NOT include the pound sign in your
answer.)
Solution
n1=80 x1=6.65
n2=41 x2=8.21
combined mean = (n1*x1+n2*x2)/( n1+n2)
=( 80*6.65+41*8.21) /( 80+41)
=868.61/121
=7.1785
Combined mean =7.18 ( two decimals).
Let R be an integral domain and F a field such that R is a subring of.pdffootstatus
Let f(x), g(x), h(x), epsilon F[x] such that f(x) does not equal 0. Prove that: If f(x) | g(x) and f(x) |
[g(x)^2 +h(x)], then f(x). Hint: g(x)^2 = g(x) * g(x)
Solution
given f(x) | g(x)
=>g(x)=k.f(x)
=>g(x)2=k2.f(x)2
=>g(x)2=l.f(x) eq1 where l=k2.f(x)
and
f(x) | [g(x)^2 +h(x)]
=>[g(x)^2 +h(x)]=m.f(x) eq2
eq2-eq1
=>h(x)=(l-m)f(x)=p.f(x) where p=l-m
there fore f(x)|h(x)
then f(x). Hint: g(x)^2 = g(x) * g(x).
Judith, Martha, and Sophia are organizing their backpacks. While org.pdffootstatus
JavaScript
1.) Write code that computes the sum of the values stored in an integer array named myArray
(you can assume that the array exists and already has values in it).
2.) Write code that computes the average of the values stored in an integer array named myArray
(you can assume that the array exists and already has values in it)
Solution
Question 1:
var sum = 0;
for(var i=0; i.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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The French Revolution Class 9 Study Material pdf free download
a) What is the Chromosome Theory of Inheritance and how was it deter.pdf
1. a) What is the Chromosome Theory of Inheritance and how was it determined? (SHOW WORK
& EXPLAIN)
b) Describe the contributions of Sutton, Boveri, McClung, Stevens, Wilson and Morgan to
determining that genetic information is carried on chromosomes. (SHOW WORK & EXPLAIN)
c) Describe the XX-XO, XX-XY and ZZ-ZW mechanisms of sex determination and give
examples of organisms that use each mechanism. (SHOW WORK & EXPLAIN)
d) How does the environment affect sexual phenotype in turtles and alligators? (SHOW WORK
& EXPLAIN)
Solution
a) Chromosomal Theory of Inheritance is a fundamental theory of genetics.Thomas Hunt
Morgan establishes the Chromosomal theory of heredity.In 1907 Morgan was based on
experiments by using Drosphila melanogaster or fruit flies. Drosphila have red eyes.Red eye
colour is dominant.Morgan discovered a recessive mutation that caused white eyes.
B) Boveri-Sutton chromosome theory identifies chromosomes as the carriers of genetic material
which states that chromosomes carry the unit of heredity.
McClung : A zoologist studied the behaviour of chromosomes in the sex cells and discovered the
sex determining chromosome.
Stevens: Stevens was interested in the process of sex determination.
Morgan proposed the Chromosomal Theory of Heredity by using a common fruit fly.
C) Sex determination is a biological system that determines the development of sexual
characteristics.
XX-XO types : In this type females have two homomorphic sex chromosomes XX ,male have
one sex chromosome XO. This type of sex determination seen in cockroaches.
XX-XY : This sex determination occurs in human beings.Females have two identical
homologous sex chromosome XX and males have XY.
ZZ-ZW : Females carry two types of sex chromosome ZW heterogametic and males carry ZZ
homogametic. This type of sex determination occurs in fishes reptiles.
D) Sex determination in reptiles are classified into two categories that is genotypic sex
determination and temperature dependent. Environmental sex determination in which
temperature is a crucial factor in embryonic development. In many turtle species eggs from
cooler nests hatch males and from warmer nests hatch the females.
