Genetic drift tends to genetic variation wITHIN small popula

Genetic drift tends to genetic variation wITHIN small populations, and A) increase; increase B) decrease; increase O C) increase; decrease D) decrease; decrease E) increase; have no effect on variation AMONG populations

Solution

1. Increase and decrease- small populations are more susceptible to genetic drift. In a small population if an indivudual is lost it will leads to the lack of gene of that particular indivudual and in a large population if a na indivudual is lost, it is just a small percentage and it wont leads to the lack of the entire genome.

2. Natural selection- changes the gene pool to improve survival