If Two Populations of Birds with Frequencies of an Allele

Multiple Choice

If two populations of birds with frequencies of an allele a of 0.2 and 0.3 are forced together by unusually high winds,the new frequency of the a allele in the combined population will be:

A) 0.2.
B) 0.25.
C) 0.3.
D) 0.5.
E) It is impossible to determine unless we know the population sizes.