foretell definition, meaning, what is foretell: to say what is going to happen in the future: . Learn more.
The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species.
Gene flow is the movement of alleles between populations, which may make their gene pools more common. For example, if two areas trade birds by migration, gene flow is the switch of allele frequencies in each population, so each bird population loses a few alleles but gains a few alleles.enetic drift is the random change in the frequency of alleles within a population's gene pool. It can cause the genetic composition of a population to change in one direction â¦ or another.