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Furrypocketpussy t1_j4j1nqa wrote

Reply to comment by CrateDane in Can a recessive gene become a dominant gene? If so, how long would it take? by Pretend-Recover-4418

recessive alleles are in general rare. If you got a group of recessive homozygotes and some heterozygotes and put them on an island where there is no genetic flow or drift then you get a population where that recessive allele is widespread

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