Hardy-Weinberg Equilibrium

AP Biology· difficulty 4/5

In a population at H-W equilibrium, 9% of individuals are homozygous recessive. The frequency of the dominant allele is

  • A

    0.30.3

  • B

    0.090.09

  • C

    0.910.91

  • D

    0.70.7

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Explanation

q² = 0.09 → q = 0.3 → p = 1 - q = 0.7.

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