Blood Types: What Letters, Positive, and Negative Signs Mean

blood group basics About Blood The most important blood groups in transfusion are the ABO blood group system and the RhD blood group system Blood groups are

The Different Blood Types · Group A has the A · Group B has the B antigen and the A antibody · Group AB has A and B antigens but neither A nor

blood group The meaning of BLOOD GROUP is one of the classes into which individuals or their blood can be separated on the

blood type A, B, and AB are all factors that can be present in your blood While there are four types, there are only actually two antigens involved: A and B! AB blood