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juliejjay juliejjay
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11 years ago
I'm tired of homework and just want a quick answer to this one question. How are they different?
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#1
11 years ago
Drifting happens when variants disappear and flow is when they migrate. On a side note, weak genes are a strong indication of not being able to do your homework.
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#2
11 years ago
Gene flow (formerly known as migration):  individuals immigrating to a population bring their rare or new alleles with them.  In a small population, emigrating individuals can take their rare alleles with them.

Genetic drift:  allele frequencies in a population are changed by random events.  This is more obvious in a small population.  Consider a fire that randomly kills more black cats than white.  "Bottleneck" and "Founder Effect" are subtopics of genetic drift.
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