AP Biologyeasymcq1 pt

In the Hardy–Weinberg equation p² + 2pq + q² = 1, what does 2pq represent?

A.Heterozygote frequency
B.Homozygous dominant frequency
C.Homozygous recessive frequency
D.Total allele frequency

Explanation

Core Concept

The heterozygous genotype can form two ways (A from mom + a from dad, or vice versa), hence the factor of 2 on pq.

Correct Answer

AHeterozygote frequency

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