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Blood types are based on molecules called antigens and antibodies. Antigens are genetically unique molecules that occur on the surface of ALL cells. They
Blood types are based on molecules called antigens and antibodies. Antigens are genetically unique molecules that occur on the surface of ALL cells. They enable our body to distinguish its own cells (self) from foreign materials (non-self). Antibodies are proteins that are secreted as part of a specific immune response