Question

What is the evolutionary mechanism that alters allele frequencies by chance called?

a) Genetic drift
b) Natural selection
c) Gene flow
d) Mutation

Answer 1

Genetic drift is the evolutionary mechanism that alters allele frequencies by chance.

Step-by-step explanation:

The evolutionary mechanism that alters allele frequencies by chance is called genetic drift. Genetic drift is the random change in allele frequencies in a population due to chance events. This can result in the loss or fixation of specific alleles over time.