Genetic Drift and Evolution
293 views · Published 22 August 2015 · 16:49 · Indexed 28 October 2026
Channel: Nikolay's Genetics Lessons · 2015 · Education
Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms. The alleles in the offspring are a sample of those in the parents, and chance has a role in determining whether a given individual survives and reproduces. Genetic drift describes random fluctuations in the numbers of gene variants in a population. ... Genetic drift can cause a new population to be genetically distinct from its original population, which has led to the hypothesis that genetic drift plays a role in the evolution of new species.
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