What is genetic drift?

Genetic drift is a mechanism of evolution that refers to the random fluctuations in gene frequency within a population over time. It is a result of chance events, such as mutations, migration, and deaths, which can reduce the diversity of a population and lead to the loss or fixation of certain alleles. Genetic drift has a greater effect on small populations, where chance events can have a greater impact on gene frequency. Unlike natural selection, genetic drift is a random process that does not necessarily result in adaptations to the environment.

This mind map was published on 19 April 2023 and has been viewed 107 times.