Multiple choice

Universal donor is the_______group person.

  1. O

  2. A

  3. B

  4. AB
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood group O individuals are called universal donors because their red blood cells lack both A and B antigens on their surface. This means their blood can be transfused to recipients with any ABO blood type (A, B, AB, or O) without causing an immune reaction.

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