Question

When are the evolutionary effects of genetic drift the greatest?

The population size is small
The population size is large
$exual selection occurs
Intraspecific competition is weak

Answer 1

population size is small

Explanation:

Answer 2

The population size is small

Step-by-step explanation:

If population size is small, the genetic diversity is low. Thus, genetic drift overtime results in individuals with very similar genotype. This is bad news because if a particular disease affects suppose organism with AA genotype and due to genetic drift all members are AA, then all the organisms might be decimated and extinct.