Biology / Unit 8 Bio 1689 short lesson, about 20 seconds
The Gene Pool and Reproductive Isolation
Captions available
The idea
A gene pool is the complete collection of alleles across a species' interbreeding population; reproductive isolation prevents alleles from crossing between two gene pools.
In practice
Alleles flow freely within one population's gene pool but cannot cross into a reproductively isolated population's separate gene pool.
Where people slip
Reproductive isolation, not physical distance alone, defines two populations as no longer sharing one gene pool.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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