In a population in Hardy-Weinberg equilibrium, the frequency of homozygous recessive individuals () for an autosomal trait is . What is the frequency of heterozygous carriers ()?
Answer and explanation
Correct answer: D.
- Step 1: Calculate recessive allele frequency: .
- Step 2: Calculate dominant allele frequency: .
- Step 3: Calculate heterozygous frequency: (or of the population).
Answer
0.42.
Why not the others: '' is homozygous dominant frequency (); '' is allele frequency ; '' is without multiplying by 2.
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