Question

Husband and wife should know their Rh factors because the situation can be serious due to biological incompatibility in one of the following cases

• A. $R{h}^{+}$ husband and $R{h}^{+}$ wife
• B. $R{h}^{-}$ husband and $R{h}^{-}$ wife
• C. $R{h}^{-}$ husband and $R{h}^{+}$ wife
• D. $R{h}^{+}$ husband and $R{h}^{-}$ wife.

Answer 1

The correct option is D $R{h}^{+}$ husband and $R{h}^{-}$ wife.

Erythroblastosis foetalis is a serious condition leading to fatality of the embryo if husband is Rh positive and wife is Rh negative.

So, the correct option is D.