Biology

The correct answer is: A.No mutations.

Explanation:

The condition of no mutations in Hardy-Weinberg equilibrium ensures that allele frequencies are not altered by genetic changes because mutations are the source of new alleles. If mutations occur, new alleles can enter the gene pool, altering allele frequencies and potentially leading to evolution. Therefore, no mutations helps maintain stable allele frequencies.

Here’s how the other conditions relate:

B.No genetic drift: Genetic drift refers to random changes in allele frequen...