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CGP EDU Academic Team
Published on: August 21, 2026
ABO blood grouping is based on the presence or absence of surface antigens
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Verified by ExpertsThe correct answer is:
blood grouping is based on the presence or absence of 
and 
antigens on the surface of RBCs. Both type of antigens are present in 
blood type while both are absent in O blood type. Only antigen A is present in A blood type while only antigen B is present in B blood type.
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