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ABO antigens are present over the surface of

  • A.WBC
  • B.RBC
  • C.Nucleus
  • D.Cytoplasm

Answer: B

ABO antigens are present on the surface of the red blood cells (RBC). The A and B antigens are carbohydrate groups attached to proteins and lipids in the membrane, and the matching antibodies are in the serum. White cells do carry other antigens (HLA), but the ABO antigens are classically described on red cells, and the nucleus and cytoplasm do not display them on their surface. Option B is correct.

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