where do we find the highest genetic diversity among human populations
Human genetic variation Alleles occur at different frequencies in different human populations, with populations that are more geographically and ancestrally remote tending to differ more, a phenomenon known as isolation-by-distance. The differences between different populations represent a small proportion of overall human genetic variation. Populations also differ in the quantity of variation among their members, with greatest diversity among African populations. This is consistent with the theory that humans recently migrated out of Africa. Populations also vary in the (always small) proportion of DNA they received from archaic hominid populations, such as Neanderthals and Denisovans.