Consider a Locus with Two Alleles, a and A

question 24

Multiple Choice

Consider a locus with two alleles, A and A. If the rate of mutation from A to a is twice the rate from a to A, what will be the equilibrium frequency of the A allele? (Assume that there are no other evolutionary forces acting on these alleles. Recall that the equilibrium allele frequency under mutation is p v v, where p is the equilibrium frequency of the A allele,  is the rate of mutation from A to a, and v is the rate of mutation from a to A.

• A) 1.0
• B) 1/2
• C) 1/3
• D) 0

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