Which of the Following is NOT an Agent of Microevolutionary

Question

Which of the following is NOT an agent of microevolutionary change?
A) mutation
B) gene flow
C) random mating
D) genetic drift

Accepted Answer

Random mating does not cause microevolutionary change; instead, it maintains genetic diversity without altering the population's allele frequencies. Microevolution is driven by factors that introduce new genetic variations (mutation), alter gene frequencies through immigration or emigration (gene flow), or cause allele frequencies to fluctuate unpredictably (genetic drift).