Which Statement About Allele Frequencies Is Not True

Multiple Choice

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.