The Gene Pool and Reproductive Isolation
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A gene pool is the complete collection of alleles across a species' interbreeding population; reproductive isolation prevents alleles from crossing between two gene pools.
Show
Alleles flow freely within one population's gene pool but cannot cross into a reproductively isolated population's separate gene pool.
Watch for
Reproductive isolation, not physical distance alone, defines two populations as no longer sharing one gene pool.