blood type

blood type   Dan blood link

The ABO blood group is the most important of all the blood group systems There are four different ABO blood groups , determined by whether or not

Blood group B individuals have the B antigen on the surface of their RBCs, and blood serum containing IgM antibodies against the A antigen  The Rh factor is inherited independently from the ABO blood type Genotypes for the Rh factor are ++, +-, and -- People who are ++ or +- possess the Rh

เรน คิมแตฮี O negative blood is known as the universal blood type because it is safe for everyone to receive O negative red cells  ABO blood group system, classification of human blood as determined by the presence or absence of A and B antigens on red blood cells