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NEET 2026
Exam
NEET
Year
2026
Subject
Zoology
Chapter
Body Fluids and Circulation

NEET 2026 · Zoology · Body Fluids and Circulation

Select the incorrect statements with reference to Rh grouping : A....

Select the incorrect statements with reference to Rh grouping :
A. Erythroblastosis foetalis is a condition observed having foetus with Rh−ve^{-ve} blood and mother with Rh+ve^{+ve} blood.
B. Rh antigen is observed on RBCs in the majority of human beings.
C. Before blood transfusion, Rh group should also be matched.
D. Rh incompatibility is observed when a pregnant mother is Rh−ve^{-ve} and the foetus is Rh+ve^{+ve}.
E. Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the mother immediately after the delivery of the second child.
Choose the answer from the options given below :

Options

  1. AC and D only
  2. BA and B only
  3. CA and E only
  4. DB and C only

Correct answer

C. A and E only

Step-by-step solution

Statement A is incorrect because erythroblastosis foetalis occurs when a pregnant mother is Rh−ve^{-ve} and the foetus is Rh+ve^{+ve}.

Statement B is correct as nearly 80%80\% of humans have the Rh antigen on the surface of their RBCs.

Statement C is correct because Rh compatibility must be checked before blood transfusion to prevent immune reactions.

Statement D is correct as Rh incompatibility arises when an Rh−ve^{-ve} mother carries an Rh+ve^{+ve} foetus.

Statement E is incorrect because erythroblastosis foetalis is prevented by administering anti-Rh antibodies to the Rh−ve^{-ve} mother immediately after the delivery of her first Rh+ve^{+ve} child, not the second child.

Thus, statements A and E are incorrect.

Answer: A and E only
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