Genes and Blood Type

Blood Groups and Types ABO Blood Types - blood group Blood group AB refers to the existence of both antigens, while type O has neither A nor B antigens Which types are most common and most rare? Generally blood group A blood group test is used to determine the blood group of an individual There are four main blood groups

blood link Human blood falls into four different blood groups: A, B, AB and O Your blood also has what is known as an Rh factor: It either contains a certain protein or