AIPMT MAINS 2009 Zoology Blood Groups MCQ Question with Solution

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

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

B

one antibody only - either anti-A or anti-B on the RBCs

C

no antigens A and B on RBCs

D

other antigens besides A and B on RBCs

Correct Answer

Option C

Detailed Explanation

The 'O' blood group lacks A and B antigens on the surface of RBCs, which is why it is named 'O' instead of 'C'.

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