Genetic purging is the increased pressure of natural selection against deleterious alleles prompted by inbreeding. Purging occurs because deleterious alleles tend to be recessive, which means that they only express all their harmful effects when they are present in the two copies of the individual (i.e., in homozygosis).
Genetic purging is the increased pressure of natural selection against deleterious alleles prompted by inbreeding. Purging occurs because deleterious alleles tend to be recessive, which means that they only express all their harmful effects when they are present in the two copies of the individual (i.e., in homozygosis).
Source: Wikipedia "Genetic purging" · CC BY-SA 4.0
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