Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 23, Problem 7TYK
If a population has the following genotype frequencies—AA = 0.42, Aa = 0.46, and aa = 0.12—what are the allele frequencies?
- a. A = 0.42; a = 0.12
- b. A = 0.6; a = 0.4
- c. A = 0.65; a = 0.35
- d. A = 0.84; a = 0.24
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You are surveying population genetics of snails while studying abroad in New Zealand. At your locus of interest, you have AA: 32 Aa:46 aa: 22. Identify the statement that accurately describes this population.
a.
The genotype frequency of AA is 0.77.
b.
The frequency of the A allele is 0.45.
c.
The genotype frequency of the heterozygotes is 0.45.
d.
The frequency of the a allele is 0.23.
A hypothetical population was found to have a genotype frequency of AA=20%, Aa=40%, aa=40%.
What genotype is in short supply (that is, in less proportions than equilibrium levels)?
a. Aa
b. AA
C. aa
d. none of the above
The allele frequency of C is 0.4 and c is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of heterozygotes?
a. 0.16 c. 0.26
b. 0.24 d. 0.48
Chapter 23 Solutions
Study Guide for Campbell Biology
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