Question

If a gene has three alleles in a population, their frequencies must add up to _____.

a. 0 1.0
b. 1.5
c. 0
d. 3.0

Answer 1

If a gene has three alleles (or three different versions) in a population, their frequencies must add up to 1.0. Each of their frequencies may be different from one another, but they must all add up to 1.0 which accounts for 100% of the alleles for the gene

Answer: 1.0 (A)