Biology

The correct answer is: B.Allele frequencies

Explanation:

Allele frequencies refer to how common or rare a particular allele is within the gene pool of a population. They are usually expressed as a percentage or proportion of the total alleles at a particular gene locus in the population.

Here’s why the other options are incorrect:

A.Traits: Traits are physical or behavioral characteristics of organisms, but they don't directly measure the freque...