Human populations that left Africa evolved quickly whereas Neanderthals stayed the same, according to an analysis of blood ...

THE blood group of a person is dependent upon the presence in his erythrocytes of specific antigens. These antigens, most easily demonstrated by agglutination methods, are usually referrecf to as ...

There are four main antigens that make up the four main blood groups. They are known as A, B, AB and O. A blood types have the A antigen, B blood types have the B antigen, and AB blood types have ...

The O blood group lacks any antigens while group A, B, and AB are successively characterized by antigen A, B, and AB.

If Neanderthal women mated with Homo sapiens or Denisovan men, there was a high risk of newborns having neonatal hemolytic ...