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The most popularly known blood grouping ...

The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because "O" in it refers to having

A

No antigens A and B on RBCs

B

Other antigens besides A and B on RBCs

C

Overdominance of this type on the genes for A and B types

D

One antibody only - either anti-A-or andti-B- on the RBCs

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The correct Answer is:
A
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