1). The genotypes have an associated fitness values which we described in class as (1 1...
1). The genotypes have an associated fitness values which we described in class as (1 1 1-s) for directional selection, (1 1-s 1) for disruptive and so on. In each of the examples below, write out the expected fitness values for AA,Aa, aa. Note that determining whether fitness for the heterozygote Aa is dominant or not is part of the question. All examples assume no other agent of evolution unless specified or required.
Example: AA Aa aa
Answer: 1 1-s 1
a) "A" is favored by meiotic drive, and meiotic drive is the only agent of evolution.
AA Aa aa
_____ _____ _____
b) "A" is favored by meiotic drive and directional selection prevents "A" from going to 100%.
AA Aa aa
_____ _____ _____
c) "A" and "a" experiencing changes in frequency due to drift as the only agent of evolution.
AA Aa aa
_____ _____ _____
d) "A" is the sickle cell and "a" is the wild type(non-sickle) allele in an area with no malaria.
AA Aa aa
_____ _____ _____
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
1). The genotypes have an associated fitness values which we
described in class as (1 1...
Fitness is the relative reproductive success of a genotype. We calculated the fitness values (W) for...
Fitness is the relative reproductive success of a genotype. We calculated the fitness values (W) for a series of genotypes to be as follows: A1A1: W11 = 0.67 A1A2: W12 = 1.00 A2A2: W22 = 0.45 After comparing these fitness values, you conclude that: It appears that one allele is favoured over another, therefore, directional selection is likely the form of selections. The fitness of the heterozygote is greater than both the homozygotes, and therefore overdominance is the likely the...
I posted this question before but no answer I need to submit in 4 hours, please...
I posted this question before but no answer I need to submit in
4 hours, please help.
Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
LLL LULUI AL SOLULIUI 1. What are the four criteria (refer to your lecture notes) that...
LLL LULUI AL SOLULIUI 1. What are the four criteria (refer to your lecture notes) that must be met in order for natural selection to result in the evolution of a phenotypic trait? Also, explain why a trait evolves in a population as a result of these 4 criteria being met (in other words, provide a clear and detailed explanation of why the Irequency of a phenotypic trait would increase across generations as a result of these 4 criteria being...
Find the calculations for the data of this population? a) Calculate the relative fitness for each...
Find the calculations for the data of this
population?
a) Calculate the relative fitness for each of the
three genotypes?
b) What is the mean fitness of this population, and
how do you expect it to change in response to selection?
c) Based on the calculations in a), calculate the
values of h and s. What type of selection has occured?
d) If the surviving individuals mate at random, what
will be the genotype frequencies in the next generation (...
In the cladistic analysis that puts bumblebees and honeybees in the same taxon (family Apidae), which...
In the cladistic analysis that puts bumblebees and honeybees in the same taxon (family Apidae), which of the following would most likely constitute a sister group for this study oak trees lobsters wasps spiders Question 3 (1 point) A fixed action pattern is initiated by the presentation of a conspecific Imprinting sign-stimulus Novel- stimulus Bilaterally symmetric animals: 1. Exhibit cephalization 2. Are triploblastic 3. have a notocord during some stage of their life history O 1&2 O 2 & 3...
A mutation in one of the hemoglobin genes causes sickle cell anemia. The sickle cell allele,...
A mutation in one of the hemoglobin genes causes sickle cell anemia. The sickle cell allele, S, severely reduces fitness in people who are homozygotes, SS. In contrast, people with at least one normal hemoglobin allele, A, do not suffer the effects of sickle cell anemia, even if the individual is a heterozygote, AS. Interestingly, in areas with high rates of malaria, a single Sallele confers some resistance to malarial infection. Suppose there is a population with the observed and...
How to do part C? B. Now we are going to further test the hypothesis that...
How
to do part C?
B. Now we are going to further test the hypothesis that natural selection is at work with a different population, favoring the retention of the debilitating sickle cell disease (heterozygote dyantape) in a population (Yoruba tribe) exposed to malaria by determining whether or not the population is in Handy Weinberg (HW) equilibrium. The total Number of individuals surveyed in the Yoruba tribe was 12,387. They had the following genotypic breakdown genotype ΗΔΗ HH 9365 (2...
1. In the White Sands desert of New Mexico, light coloration has evolved in multiple, independent...
1. In the White Sands desert of New Mexico, light coloration has evolved in multiple, independent populations of mice, similar to the lizards described by Rosenblum et al. (2010). In some cases, a mutation in the Mc1R gene prevents binding of a signaling molecule, thus blocking the signal to produce melanin. This type of mutation appears to be recessive. In other cases, increased production of the inhibitor ASP blocks production of melanin. This type of mutation appears to be dominant....
On the island of Notion, in the Factotum Archipelago, there lives a population of pencil bears....
On the island of Notion, in the Factotum Archipelago, there lives a population of pencil bears. A portion of these bears have silky fur, and as a result, are much better surfers. The texture of the fur is determined by a single autosomal locus with two alleles: S (trait allele) and s (wild type allele). In a recent study, researched collected the values in the following table: Table 1. Counts of Pencil Bear fur style by genotype Phenotype Genotype Silky...
Can someone please help me with the following questions. Please provide an answer/explanation especially for the...
Can someone please help me with the following questions. Please provide an answer/explanation especially for the first three. ?. Suppose a population of flour beetles has 1,000 individuals. Normally the beetles are red; however, this population is polymorphic for a mutant autosomal body color, black, designated by bb. Red is dominant to black, so BB and Bb genotypes are red. Assume the population is at Hardy–Weinberg equilibrium, with equal frequencies of the two alleles. What would be the allele frequencies...
I posted this question before but no answer I need to submit in
4 hours, please help.
Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
LLL LULUI AL SOLULIUI 1. What are the four criteria (refer to your lecture notes) that must be met in order for natural selection to result in the evolution of a phenotypic trait? Also, explain why a trait evolves in a population as a result of these 4 criteria being met (in other words, provide a clear and detailed explanation of why the Irequency of a phenotypic trait would increase across generations as a result of these 4 criteria being...
Find the calculations for the data of this
population?
a) Calculate the relative fitness for each of the
three genotypes?
b) What is the mean fitness of this population, and
how do you expect it to change in response to selection?
c) Based on the calculations in a), calculate the
values of h and s. What type of selection has occured?
d) If the surviving individuals mate at random, what
will be the genotype frequencies in the next generation (...
In the cladistic analysis that puts bumblebees and honeybees in the same taxon (family Apidae), which of the following would most likely constitute a sister group for this study oak trees lobsters wasps spiders Question 3 (1 point) A fixed action pattern is initiated by the presentation of a conspecific Imprinting sign-stimulus Novel- stimulus Bilaterally symmetric animals: 1. Exhibit cephalization 2. Are triploblastic 3. have a notocord during some stage of their life history O 1&2 O 2 & 3...
A mutation in one of the hemoglobin genes causes sickle cell anemia. The sickle cell allele, S, severely reduces fitness in people who are homozygotes, SS. In contrast, people with at least one normal hemoglobin allele, A, do not suffer the effects of sickle cell anemia, even if the individual is a heterozygote, AS. Interestingly, in areas with high rates of malaria, a single Sallele confers some resistance to malarial infection. Suppose there is a population with the observed and...
How
to do part C?
B. Now we are going to further test the hypothesis that natural selection is at work with a different population, favoring the retention of the debilitating sickle cell disease (heterozygote dyantape) in a population (Yoruba tribe) exposed to malaria by determining whether or not the population is in Handy Weinberg (HW) equilibrium. The total Number of individuals surveyed in the Yoruba tribe was 12,387. They had the following genotypic breakdown genotype ΗΔΗ HH 9365 (2...
Most questions answered within 3 hours.
-
You are working as an intern at a new company. Your boss, Paul,
was recently hired...
asked 26 minutes ago -
12.59 Place the following solutions in order of
increasing [H3O+]. Please explain your
reasoning.
0.10 M...
asked 29 minutes ago -
Coaching:
Most Salespeople are very comfortable with one on one
interactions with clients. But put some...
asked 40 minutes ago -
Marst Corporation's budgeted production in units and budgeted
raw materials purchases over the next three months...
asked 43 minutes ago -
Chemical equations for forming oxalate,
bioxalate, and redox with CO(NO3)2
asked 43 minutes ago -
Which one makes a good buffer with a pH of 5? a) H2C2)4 b)
H3AsO4 c)...
asked 47 minutes ago -
Transposable elements are found in the genomes of nearly every
species. What sequence features can be...
asked 1 hour ago -
the typical firm in the United States economy
(x) has some degree of market power.
(y)...
asked 1 hour ago -
Carragher &Company has a new management team that has
developed an operating plan to improve upon...
asked 1 hour ago -
Please explain a few critical of what is culture, and social
behavior based on the textbook...
asked 1 hour ago -
Long paths we show that for every n ≥ 3 if deg(v) ≥ n/2 for
every...
asked 1 hour ago -
I need a python code that would solve this. One of the jobs that
roberts has...
asked 1 hour ago