Hardy-Weinberg Equilibrium

AP Biology· difficulty 3/5

If 16% of a population is homozygous recessive (q² = 0.16), the allele frequency q is

  • A

    0.32

  • B

    0.40

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  • C

    0.16

  • D

    0.84

Explanation

q = √0.16 = 0.4. (And p = 1 − q = 0.6.)

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