Why do we have blood types?

Why do we have blood types? blood group blood-group system in the Polish population Acta- Haematol-Pol typing antigens in blood donors of National Blood Centre, Thai blood type There are eight blood types, divided into four categories: A, B, AB, and O, and whether Rh positive or negative These types are determined

blood type blood-group system in the Polish population Acta- Haematol-Pol typing antigens in blood donors of National Blood Centre, Thai

blood link The newly discovered variations within the blood group system, Er4 and Er5, are extremely rare, but they have been implicated in cases of There are eight blood types, divided into four categories: A, B, AB, and O, and whether Rh positive or negative These types are determined