WBCS.LIVE practice question

Which blood group is known as the 'Universal Donor' because its red blood cells lack A and B antigens?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. AB Positive
  2. O Negative
  3. A Negative
  4. B Positive

Correct answer and explanation

Correct answer: O Negative

Explanation: āœ… Correct Answer: B) O Negative šŸ“š Explanation: Blood group O Negative does not have A, B, or Rh antigens on the surface of the red blood cells, which prevents an immune response in the recipient. This makes it safe to transfuse into patients of any other blood type during an emergency when typing is not possible. Conversely, AB Positive is the universal recipient because it lacks antibodies against these antigens.