Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Textbook Question
Chapter 26, Problem 10PDQ
Consider a population in which the frequency of allele A is p = 0.7 and the frequency of allele a is q = 0.3, and where the alleles are codominant. What will be the allele frequencies after one generation if the following occurs?
- (a) wAA = 1, wAa = 0.9, waa = 0.8
- (b) wAA = 1, wAa = 0.95, waa = 0.9
- (c) wAA = 1, wAa = 0.99, waa = 0.98
- (d) wAA = 0.8, wAa = 1, waa = 0.8
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In a population of 200 people, an allele F has a frequency of 84%. What is the frequency of allele f? Using the Hardy-Weinberg equation, estimate the numbers of homozygous dominant, heterozygous, and homozygous recessive genotypes. (Remember that the formula is: p2 + 2pq + q2 = 1, where p represents the dominant allele and q represents the recessive allele.) *Be sure to account for all 200 people in the population.
A sample of 100 individuals from a population that is dimorphic at the A locus has genotype counts as follows.
AA: 30
Aa: 60
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b) What are the expected genotype frequencies, if the population were at HardyWeinberg equilibrium?
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If a population is in Hardy-Weinberg equilibrium for the multiple alleles A+, A and a, whose frequencies are p= 0.60 for A+, q= 0.20 for A, and r = 0.20 for a, what percentage of the population is expected to be heterozygous?
Chapter 26 Solutions
Concepts of Genetics (12th Edition)
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