1. For a single locus with two alleles, A₁ and A₂: (a) Draw a graph (using graph paper) showing both the frequency of A₁ A₂ heterozy- gotes and A₂ A₂ homozygotes, at Hardy-Weinberg frequencies, as functions of p (the frequency of A₁). Note that both p and the genotype frequencies should have values between 0 and 1. (b) Find the value of p above which A₁ A2 genotypes are more common than A2A2 genotypes. You can solve this algebraically, or estimate it from your graphs.
1. For a single locus with two alleles, A₁ and A₂: (a) Draw a graph (using graph paper) showing both the frequency of A₁ A₂ heterozy- gotes and A₂ A₂ homozygotes, at Hardy-Weinberg frequencies, as functions of p (the frequency of A₁). Note that both p and the genotype frequencies should have values between 0 and 1. (b) Find the value of p above which A₁ A2 genotypes are more common than A2A2 genotypes. You can solve this algebraically, or estimate it from your graphs.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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![1. For a single locus with two alleles, A₁ and A₂:
(a) Draw a graph (using graph paper) showing both the frequency of A₁ A2 heterozy-
gotes and A₂ A₂ homozygotes, at Hardy-Weinberg frequencies, as functions of p
(the frequency of A₁). Note that both p and the genotype frequencies should have
values between 0 and 1.
(b) Find the value of p above which A₁ A2 genotypes are more common than A₂42
genotypes. You can solve this algebraically, or estimate it from your graphs.
2. Consider three loci, A, B, and C, each with two alleles, with the frequencies of A₁, B₁,
and C₁ all being
We look at a population and find that there are four distinct haplotypes, shown here,
each with a frequency of:
A₁
B1
TT
A1
C₁
B1
A₂ B₂
AT
C₂
A₂ B₂ C₁
C₂
Of the three pairs of loci (AB, AC, and BC) which pair(s) are in Gametic Equilibrium
(D = 0) and which are in Gametic Disequilibrium (D ‡0)?
[Hint: Consider each pair separately, ignoring the other locus. For example: for the BC
pair, consider the four combinations shown (B₁C₁, B₁C2, B₂C₁, and B₂C₂) ignoring
the A locus.]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb5e7f421-4fd8-49d8-b638-131a56945312%2Fab726e7b-ecf5-47ea-8501-8fea5ae15121%2Fehba8j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. For a single locus with two alleles, A₁ and A₂:
(a) Draw a graph (using graph paper) showing both the frequency of A₁ A2 heterozy-
gotes and A₂ A₂ homozygotes, at Hardy-Weinberg frequencies, as functions of p
(the frequency of A₁). Note that both p and the genotype frequencies should have
values between 0 and 1.
(b) Find the value of p above which A₁ A2 genotypes are more common than A₂42
genotypes. You can solve this algebraically, or estimate it from your graphs.
2. Consider three loci, A, B, and C, each with two alleles, with the frequencies of A₁, B₁,
and C₁ all being
We look at a population and find that there are four distinct haplotypes, shown here,
each with a frequency of:
A₁
B1
TT
A1
C₁
B1
A₂ B₂
AT
C₂
A₂ B₂ C₁
C₂
Of the three pairs of loci (AB, AC, and BC) which pair(s) are in Gametic Equilibrium
(D = 0) and which are in Gametic Disequilibrium (D ‡0)?
[Hint: Consider each pair separately, ignoring the other locus. For example: for the BC
pair, consider the four combinations shown (B₁C₁, B₁C2, B₂C₁, and B₂C₂) ignoring
the A locus.]
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