gene flow


gene flow

Introduction of genetic material (by interbreeding) from one population of a species to another, thereby changing the composition of the gene pool of the receiving population. The introduction of new characteristics through gene flow increases variability within the population and makes possible new combinations of traits. In humans, gene flow usually comes about through human migration.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on gene flow, visit Britannica.com.

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