Question

ABO grouping is based on how many antigens present or absent on WBCs
1)1
2)2
3)3
4) none of these​

Answer 1

Answer:

2

Explanation:

ABO blood grping based on presence of A(A grp) and B antigen(B grp) and absence of any antigen(o group)

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Answer 2

Answer:

2) ABO grouping is based on two antigens present or absent on WBCs

Explanation:

• The ABO types are mostly determined by two antigens and two antibodies. In most circumstances, an individual's type is determined by a combination of these four factors.
• ABO classification The presence or absence of two surface antigens (chemicals that might trigger an immunological response) on RBCs, notably A and B, determines the ABO grouping. Similarly, two natural antibodies might be found in the plasma of different people (proteins produced in response to antigens).