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A recessive phenotype is seen in one quarter of an equilibrium population. AA frequency is:
A0.50
B0.75
C0.0625
D0.25
Answer & Solution
Correct answer: D. 0.25
q^2 = 0.25 so q = 0.5 and p = 0.5, giving AA = p^2 = 0.25.
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