Gene flow a evens out genetic differences between populations 2 increases genetic differences between populations 3 happens when random events change the genotype of a population 4 is the same as genetic drift

The correct answer would be A evens out genetic differences between populations.

Gene flow or gene migration in population genetics refers to the transfer of genetic variations or genes from one population to the another.

With time, the two populations share the same and equal genetic diversity.

It is achieved when migration is allowed between the populations.

Thus, it would decrease or even out the genetic differences between populations.

the answer is