The founder effect is an extreme example of "genetic drift." Genes occurring at a certain frequency in the larger population will occur at a different frequency -- more or less often -- in a ...

According to this hypothesis, most of the changes in DNA inside individuals are the result of "genetic drift" -- random changes that go on all the time and aren't steered by natural selection in ...

As Gautschi et al. explain, genetic drift, arguably the most powerful evolutionary force at work in small populations, results from the random sampling of alleles from one generation to the next ...