Doctors call this the ABO Blood Group System. The third kind of antigen is called the Rh factor ... type — you can receive red blood cells from people with all types of blood. The chart ...
You may or may not have this factor in your blood. When present, it is found on the surface of red blood cells and you are considered to have Rh-positive (Rh+) blood type. If you have no Rh ...
O blood types, however, have neither A nor B antigens. These ABO blood types are further classified as Rh positive ... check out this chart at BabyMed.com. Since blood type is genetic, some ...