Question

The belief that the mother is completely responsible for the sex of the child is wrong because the child

• A. gets sex chromosome only from the mother
• B. develops in the body of the mother
• C. gets one sex chromosome from the mother and the other from the father
• D. gets sex chromosome only from the father

Answer 1

The correct option is C

gets one sex chromosome from the mother and the other from the father

The correct option is D.

Explanation for the correct option:

1. The X and Y chromosomes are present in the male sex gametes, while there are two X chromosomes in the female sex gametes.
2. The male gamete that fuses with the female gamete determines the sex of the infant.
3. A girl is produced when an X gamete fuses since the resulting zygote contains XX chromosomes, whereas a boy is produced when an XY zygote fuses.
4. Therefore, one sex chromosome comes from the mother while other sex chromosome comes from the father.

Final answer: The belief that the mother is completely responsible for the sex of the child is wrong because the child gets one sex chromosome from the mother and the other from the father.