Assuming That a Deleterious Allele Is Maintained in a Population

Multiple Choice

Assuming that a deleterious allele is maintained in a population by mutation-selection balance, which scenario below describes the case where you would expect the equilibrium frequency of the allele to be highest?

A) The mutation rate is low; the allele is highly deleterious.
B) The mutation rate is low; the allele is slightly deleterious.
C) The mutation rate is high; the allele is highly deleterious.
D) The mutation rate is high; the allele is slightly deleterious.