QUESTION 5 In a population of spider monkeys, 126 have all black hair and 18 hav

Question

QUESTION 5 In a population of spider monkeys, 126 have all black hair and 18 have an autosomal recessive trait causing a white stripe of hair on their head Give your answer to 2 decimal places. For example, 0.12345 12 Calculate the frequency of the recessive allele. .35 Calculate the frequency of the dominant allele. 65 Calculate the frequency of the homozygous dominant genotype. .42 Calculate the frequency of the heterozygous genotype. 46 Calculate the frequency of the homozygous recessive genotype. 13

Explanation / Answer

Answer:

The frequency of the homozygous recessive genotype = q^2= 18/143 = 0.13

The frequency of the recessive allele = q= 0.36

P+q-1

p (dominant allele frequency)= 1- q = 1-0.36= 0.64

The frequency of the dominant allele = p = 0.64

The frequency of the homozygous dominant genotype = p^2= 0.75 * 0.75 = 0.41

The frequency of the heterozygous genotype 2pq= 2 * 0.64 * 0.36 = 0.46

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