Multiple choice general knowledge science & technology

which blood group is known as universal donor

  1. ab

  2. a

  3. o

  4. b
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

O negative blood group is known as the universal donor because it lacks both A and B antigens and the Rh factor. This means it can be transfused to patients with any blood type (A, B, AB, or O, regardless of Rh factor) in emergency situations without causing immune reactions.

AI explanation

To answer this question, you need to understand the concept of blood types and compatibility.

There are four main blood types: A, B, AB, and O. Each blood type can be either positive (+) or negative (-) based on the presence or absence of the Rh factor.

The correct answer is C) O. Blood type O is known as the universal donor because it can be given to individuals of any blood type (A, B, AB, or O) without causing an adverse reaction. This is because blood type O lacks both the A and B antigens on the red blood cells, which means it does not trigger an immune response in the recipient.

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