What is the physiological basis of blood grouping?

asked in Body Fluids and Circulation (Cardiovascular System, Circulatory system) by Lifeeasy Biology

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Human RBC’s contain on their surface (cell membrane) a series of glycoproteins and glycolipids, which constitute blood group antigens. The development of these antigens is genetically controlled. They appear early in fetal life and remain till death. On the basis of presence of these antigens blood group system are classified.
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