AIPMT 2009 Biology Solved Paper

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Question : 27 of 100

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

No antigens A and B on RBCs
Other antigens besides A and B on RBCs
Overdominance of this type on the genes for A and B types
One antibody only-either anti-A and anti-B on the RBCs

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