Question

When is genetic drift a major factor of evolution?

Answer 1

When there is low gene flow

Answer 2

Answer:

When there is a lower genetic flow.

Explanation:

Genetic drift is a major factor of evolution when the organism population size is small. In such a population, the random change in the allele frequency that is not a response to a selective pressure can become fixed in a population. The random change in population is called genetic drift.

The genetic drift is a major factor in evolution when there is lower gene flow and when there is no selective pressure and when there is a bottleneck in the environment.