Question

How large must a population be to avoid genetic drift?

Answer 1

Genetic drift is the process of modifications in the frequency of alleles in a population due to the random events. This process is significant for small populations. It is rapid in small populations and slow in large populations.

It occurs very slowly in a large population. It has only very small effects in any generation in large population. Small samples are selected from the larger samples, therefore genetic drift is more powerful in smaller populations. So, large population must be to avoid the process of genetic drift.