1.)The frequency of the R allele for round seeds in a certain population of 500 peas was found to be 0.45. How many of them were wrinkled? How many of them had the rr genotype? How many of them were round?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter19: Population Genetics And Human Evolution
Section: Chapter Questions
Problem 11QP: Using the HardyWeinberg Law in Human Genetics In a given population, the frequencies of the four...
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1.)The frequency of the R allele for round seeds in a certain population of 500 peas was
found to be 0.45.

How many of them were wrinkled?

How many of them had the rr genotype?

How many of them were round?

2.)In humans, a dominant allele controls the formation of a cleft chin, a Y-shaped fissure
in the chin caused by an atypical bone formation in the mandible (this phenotype
is also known as a chin dimple). A survey of 1200 college students found that
108 of them did not have a cleft chin. What was the frequency of heterozygotes in
that student population?

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