Genetic distance between human groups

One proposed family tree for modern humans. This family tree is based on nucleic-add hybridization studies of many genes and immuno-logical comparisons. Branch points show presumed genetic divergences. This data indicates that the greatest genetic distance separates humans native to Africa from all other populations. This was the earliest branch point. The next greatest distance separates Southeast Asian and Australian populations from others. There is only a small degree of genetic distance between humans in the Arctic and Northeast Asia and those in the Americas This means that these two populations were one until relatively recently. The more recently two populations diverged, the more similar they are genetically.

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