Which statement about allele frequencies is not true?
A) The sum of all allele frequencies at a locus is always 1.
B) If there are two alleles at a locus and we know the frequency of one of them, we can obtain the frequency of the other by subtraction.
C) If an allele is missing from a population, its frequency in that population is 0.
D) If two populations have the same allele frequencies at a locus, they must have the same proportion of homozygotes at that locus.
E) If there is only one allele at a locus, its frequency is 1.

Question

Quizplus · Accepted Answer

This statement is not necessarily true. Although it is possible that two populations with the same allele frequencies at a locus have the same proportion of homozygotes, it is also possible that they have different proportions of homozygotes but the same proportion of heterozygotes. Therefore, D is not always true. The other statements are all true.

Which Statement About Allele Frequencies Is Not True