NEET Biology question

The possibility of erythroblastosis foetalis occurring during the second pregnancy is when

(A)The baby is Rh+ and mother Rh-Correct
(B)The baby and mother are Rh+
(C)The baby and mother are Rh-
(D)The baby is Rh- and mother Rh+

Answer: (A)

Solution

Erythroblastosis foetalis develops when an Rh-negative mother, sensitized during a first Rh-positive pregnancy (or exposure), produces anti-Rh antibodies that can cross the placenta and attack the red blood cells of a subsequent

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Question ID VK-119613