Endogamous Group - Population Genetics

Population Genetics

Further information: Population genetics and inbreeding

The isolationist practices of endogamy may lead to a group's extinction rather than its survival, as genetic diseases may develop that can affect a larger percentage of the population. For instance, while long serving to preserve their religion, the Samaritans' practice of endogamy threatens this community: refusal to intermarry, in conjunction with their non-acceptance of converts, has led the population of this ethnic group to decrease to fewer than one thousand.