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
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