AP Biologymediummcq1 pt
In a population of 500, 320 are AA and 160 are Aa. What is the frequency of the A allele?
A.0.80
B.0.64
C.0.16
D.0.60
Explanation
Core Concept
Total A alleles = 2(320) + 160 = 800 out of 1000 total alleles (2 × 500), so p = 0.80. Heterozygotes contribute half their alleles to each pool.
Correct Answer
A0.80
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