NEET 2026 — Biology solution

NEET2026Biology

Select the incorrect statement with reference to Rh grouping.

A. Erythroblastosis foetalis is a condition observed having foetus with Rh $^{- v e}$ blood and mother with Rh $^{+ v e}$ 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 $^{- v e}$ and the foetus is Rh $^{+ v e}$ .

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 :

A
C and D only
B
A and B only
C
A and E only
D
B and C only

Solution

Statement A is reversed: Rh incompatibility / erythroblastosis foetalis occurs when the mother is Rh $^{- v e}$ and the foetus is Rh $^{+ v e}$ , not the other way round.

Statement E is incorrect because anti-Rh antibodies must be given to the mother immediately after the delivery of the first child to prevent sensitisation, not the second.

Statements B, C and D are correct. Hence the incorrect set is A and E.

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