A Seabird Living on a Small Island Is Born with a Mutation

Multiple Choice

A seabird living on a small island is born with a mutation that gives it a coloured patch on the top of its head. The mutation is dominant and appears to be neutral. Over the next twenty generations, the frequency of the 'head patch' allele should

A) increase.
B) decrease.
C) remain the same.
D) disappear.
E) Based on this information, it is impossible to predict.