The frequency of q in a population is 0.05. What is value of 2pq in the equation (the frequency of the heterozygous genotype)?

Since p + q = 1, p = 1 − 0.05 = 0.95. The heterozygous genotype frequency is 2pq = 2 × 0.95 × 0.05 = 0.095, so the answer is C, 0.095.

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