GENE FLOW: When an individual moves to another population, does it need to breed first....?
does it need to breed first with the other species for it to be considered gene flow or is his movement alone enough to be defined as gene flow?
And can you elaborate on it a little?
Thanks in advance!
- novangelisLv 77 years agoFavorite Answer
Two populations can occupy the same space. They might be separated by things such as infertile hybrids or different mating calls, so geography is a secondary consideration. If there is interbreeding which allows alleles only found in one population to migrate to the other population, then there is gene flow.