Question

what is the antigen present on DNA of O+ve blood group person? ​

Answer 1

ACCORDING TO THE ABO BLOOD GROUPING:

O positive person has

No antigen on the cell membrane ( not dna) of rbc

And anti a and anti b antibodies in plasma

NOTE: o positive person has H antigen on the cell membrane of rbc ( H antigen is not a part of ABO blood group system)