AP BIOLOGY

Detailed explanation-1: -Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual organisms that reproduce in their new populations, or to the movement of gametes (e.g., as a consequence of pollen transfer among plants).

Detailed explanation-2: -Gene flow is a fundamental agent of evolution based on the dispersal of genes between populations of a species. It involves the active or passive movement of individual plants, animals, gametes, or seeds.

Detailed explanation-3: -Migration is the movement of individuals or gametes from one population to another and is equivalent to gene flow when the migrants contribute their genes to the gene pool of the new population.

Detailed explanation-4: -Another mechanism of evolution may occur during the migration of individuals from one group or location to another. When the migrating individuals interbreed with the new population, they contribute their genes to the gene pool of the local population. This establishes gene flow in the population.

Detailed explanation-5: -Migration, also called gene flow, occurs both with the advancing front of a population when it is colonizing new areas, and when genes of two or more populations mix through pollen and seed dispersal.