Blood type

Blood type blood group There are three antigens in the ABO blood group system, A, B and H The ABO gene is located on chromosome 9 and has three alleles, A, B and O The A allele blood group ABO is the most important of all the blood group systems There are four different ABO blood groups, determined by whether an individual's red cells carry the A

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 link There are three antigens in the ABO blood group system, A, B and H The ABO gene is located on chromosome 9 and has three alleles, A, B and O The A allele A blood group test is used to determine the blood group of an individual There are four main blood groups