In a population in Hardy-Weinberg equilibrium, the frequency of the recessive allele q is 0.3. What is the frequency of the homozygous recessive genotype?
Answer and explanation
Correct answer: D. 0.09
- Step 1: The homozygous recessive frequency is q^2. Step 2. q^2 = 0.3^2 = 0.09. Answer: 0.09. Why not the others: 0.3: That is the allele frequency. 0.42: That is the frequency of heterozygotes, 2pq. 0.49: That is the frequency of the homozygous dominant genotype.
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