Blood Groups and Significance · NCERT Biology

What will happen if an Rh negative person is exposed to Rh positive blood for the first time?

  1. Immediate and severe anaphylactic shock leading to death
  2. Production of specific antibodies against Rh antigens
  3. Immediate destruction of the person's own RBCs throughout the body
  4. No detectable change in the blood composition of that person
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Correct answer: Production of specific antibodies against Rh antigens

When an Rh- person is exposed to Rh+ blood, their immune system recognizes the Rh factor as foreign. This triggers the production of specific anti-Rh antibodies in the recipient's plasma.

Difficulty: Medium Question 6 of 20

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