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NDA 2020 GAT · General Knowledge · Human Physiology · easy

The blood group which can be given to patients of any ABO blood group, as universal donor, is

Single correct option

The blood group which can be given to patients of any ABO blood group, as universal donor, is
  1. A. O
  2. B. AB
  3. C. A
  4. D. B
Show answer and solution

Answer: (A) O

Group O red cells lack both A and B antigens, so they do not provoke an immune reaction in recipients of any ABO group. AB is the universal recipient, since its plasma has neither anti-A nor anti-B antibodies. This reversal of the two terms is the common trap.
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Original question written in the NDA 2020 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake