Genetic flow is the transfer of from one population to another?
a)
cells
b)
genes
c)
money
d)
natural resources

The correct answer for the blank is-

B)  genes.

Genetic flow can be described as the migration of a gene variant ( also called allele) from one population to another population.

In other words, it represents transfer of gene from one population to another.

If gene flow is higher in a population, then the migrant and the existing populations are said to be a single population as gene flow occurs through interbreeding of organisms.