Consider a Locus with Two Alleles, a and A

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