The Community Blood Center of the Ozarks (CBCO), the sole supplier of blood, platelets, and plasma to 45 hospitals across the ...

which program our blood cells differently to form the different blood groups. If you have type AB blood, for example, your body is programmed to produce A and B antigens on red blood cells.

Blood type is categorized into one of these eight groups: A-positive, A-negative, B-positive, B-negative, O-positive, O-negative, AB-positive and AB-negative. But what determines blood type and ...