NEETZoologyBody Fluids and Circulation
Match List I with List II : List I List II A. First pregnancy with Rh ^ +ve foetus in Rh ^ -ve mother I. Nearly 80 % of humans B. Subsequent pregnancy with Rh ^ +ve foetus in untreated Rh ^ -ve mother II. Administration of anti-Rh antibodies to the mother C. Prevention of erythroblastosis foetalis III. Severe anaemia and jaundice to the baby D. Individuals having Rh antigen on their RBCs IV. Mother starts preparing a
Options
- AA - IV, B - III, C - II, D - I
- BA - III, B - IV, C - II, D - I
- CA - IV, B - III, C - V, D - I
- DA - IV, B - II, C - III, D - I
Correct answer
A. A - IV, B - III, C - II, D - I
Step-by-step solution
During the first pregnancy, the maternal and foetal blood are well separated by the placenta, but exposure during delivery causes the mother to start preparing antibodies against the Rh antigen (A matches IV). In subsequent pregnancies, if the mother is untreated, her Rh antibodies can cross the placenta and destroy foetal RBCs, causing severe anaemia and jaundice to the baby, a condition known as erythroblastosis foetalis (B matches III). This condition can be prevented by administering anti-Rh antibodies to the m