Evolution...?

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What are the two ways that can be related in which alleles can become fixed in a population?

2007-01-17 13:33:15 · 2 answers · asked by KE 1 in Science & Mathematics ➔ Biology

2 answers

by the effects of selection (either negative or positive).

Alleles can also become fixed by chance through bottlenecks. If you randomly remove a limited number of individuals from a large population and have them start a new population it increases the chances of fixing alleles.

2007-01-18 01:33:11 · answer #1 · answered by floundering penguins 5 · 0⤊ 0⤋

Either negative or positive selection can fix alleles in a population.

2007-01-17 14:31:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋