The O blood group lacks any antigens while group A, B, and AB are successively characterized by antigen A, B, and AB.

Blood type is categorized into one of these eight groups ... and AB-negative. But what determines blood type and what does that blood type mean? Blood types are determined by antigens -- a ...

There are four main antigens that make up the four main blood groups. They are known as A, B, AB and O. A blood types have the A antigen, B blood types have the B antigen, and AB blood types have ...

After 50 years, scientists discover the MAL blood grouping system, solving a genetic mystery and improving transfusion safety worldwide.

THE blood group of a person is dependent upon the presence in his erythrocytes of specific antigens. These antigens, most easily demonstrated by agglutination methods, are usually referrecf to as ...

This is also the case for the new blood group. "The work was difficult because the genetic cases are very rare," explained Tilley. Previous research found more than 99.9 percent of people have the ...

Type A blood contains Type A antigens and type B blood contains Type B antigens. There are 35 blood groups in the world, but the two most common groups are ABO group and Rh group. These groups ...