Question

From heredity point of you which marriage is not suitable?

• A. Man Rh(-) and Women Rh(+)
• B. Both Rh(+)
• C. Both Rh(-)
• D. Man Rh(+) and Women Rh(-)

Answer 1

The correct option is D

Man Rh(+) and Women Rh(-)

The correct option is D.

Explanation of the correct option :

1. When a Rh-positive mother is impregnated by an Rh-positive father and is carrying an Rh-positive baby, the fetus Rh antigens will be perceived as foreign invaders in the mother's body.
2. It can initiate the protective mechanism that can end up harming the child during the second pregnancy and is called erythroblastosis foetalis.
3. So, Rh (+) man and Rh (-)woman should be avoided in biological marriages.

Final answer: Man Rh(+) and Women Rh(-) from a heredity point of view marriage is not suitable.