What is Gene flow?
'''Gene flow''' or '''gene migration''' is the name for the transfer of [[allele]]s or [[gene]]s from one [[population]] to another. The most usual cause is the movement of animals or (with plants) the movement of [[seed]]s or [[fruit]]s. Various barriers to gene flow can occur. The most usual is a [[Speciation#Geographical isolation|geographical barrier]] of some kind. The beginnings of [[speciation]] often depends on the separation of populations which were once interbreeding ([[panmictic]]). {{biology-stub}} [[Category:Genetics]]