Wild Animals - Drift load: how genetic isolation drives extinction
Wild Animals · 0:41
In evolutionary biology, drift load is the decrease in fitness caused when harmful mutations become permanent due to random genetic drift. When all individuals in a population share the same allele at a genetic locus, that gene becomes fixed and variation vanishes. As harmful alleles lock in across multiple loci, fitness declines with every passing generation. This process, termed mutational meltdown, can push a group into an extinction vortex. Preventing drift load is now a major priority within conservation genetics.
Source: Wikipedia
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