What is genetic drift ?

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¶¶ Genetic drift may be defined as the change in the frequency of the alleles of a gene in a given population.This may be either due to natural selection or due to any other event which occurs in a particular environment.

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Genetic drift is an evolutionary change in allelic frequencies of a population as a matter of chance. It occurs in very small populations but its effects are strong. It occurs due to an error in selecting the alleles for the next generation from the gene pool of the current generation.

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Allele frequencies of a population change over a generation due to chance event...

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•• Genetic drift is the change in the gene frequencies of a population due to chance events.It will lead to accumulation of differences between the isolated groups of a population.••

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Genetic drift is a change in the frequency of an allele within a population over time. There are no environmental influences that cause genetic drift to occur.
Examples of genetic drift are more evident in smaller populations of organisms.

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The random change in gene frequency and gene number by chance only , irrespective of its being advantageous or not in a population is called genetic drift.

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The change in gene frequency is called genetic drift.

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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

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The change in gene frequency is known as Genetic Drift...
Hope you understood!!!

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