In a population in Hardy-Weinberg equilibrium, 4% of people have a recessive condition. What percentage are carriers?

Answer and explanation

Correct answer: D. 32%

  1. Step 1: The homozygous recessive frequency is , so . Step 2. Then . Step 3. Carriers , or 32%. Answer: 32%. Why not the others: 16% is without doubling; 20% is itself; 64% is , the homozygous dominant frequency.

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