In a population of frogs, the allele for brown skin is dominant to the allele for green skin. A drought leads to the selection against green-skinned individuals. When the drought ends, 33% of the remaining frogs have green skin. A. What will the frequency of green skin alleles be after 3 additional generations? B. What will be the frequency of brown skin alleles after 3 additional generations? C. If there are 350 frogs, how many would be expected to be heterozygous? D. How many of the 350 frogs are expected to be homozygous dominant?
Added by Michele D.
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Since the drought led to selection against green-skinned individuals, we can assume that the frequency of the green skin allele decreased in the population. Let's say that after the drought, the frequency of the green skin allele was q = 0.33. After one Show more…
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