What are the two antigens that are used to determine ABO grouping of blood?

What are the two antigens that are used to determine ABO grouping of blood?
  1. A and B antigens
  2. C and D antigens
  3. E and F antigens
  4. G and H antigens

Solution

ABO grouping of blood is based on the presence or absence of two surface antigens (chemicals that can induce immune response) on the RBCs namely A and B.

Asked in: NCERT

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