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The common and continuous source of variation? 1-gene recombination, 2-mutation,3-genetic drift

Asked by Priyanka 12th November 2017, 1:13 PM
Answered by Expert

For a given population, there are three sources of variation:

-          Mutation

-          Gene recombination

-          Genetic drift or immigration of genes

However, recombination by itself does not produce variation unless alleles are segregating already at different loci; otherwise there is nothing to recombine.

Similarly, genetic drift cannot provide variation if the entire species is homozygous for the same allele.

Ultimately, the common and continuous source of all variation is mutation.

Answered by Expert 13th November 2017, 10:54 AM
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