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-3 Blood Groups

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Ablood type(also called ablood group) is a classification ofblood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of redbloodcells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on theblood groupsystem.

Within the ABO system, people can be one of four groups - O, A, B or AB, while in the Rh(D) system they can be either Rh(D) positive or Rh(D) negative. Each system is inherited independently of the other. As a result, there are eight main blood groups.

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A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.



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