Question

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DNA typing is used to compare evidence DNA (E) left at a crime scene to two suspects
(S1 and S2). Suspect 1 is excluded by the evidence, but suspect 2 remains included. What is
the frequency of suspect 2's genotype if the allelic frequencies in the population are f(A1) =
0.1, f(A2) = 0.2, and f(A3) = 0.7, and the population is at Hardy–Weinberg equilibrium?

The answer is 0.49.

S1
S2
A2

Image Transcription

S1 S2 A2

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