Question

1. The sex of a child is determined by what it inherits from the mother.
2. The sex of a child is determined by what it inherits from the father.
3. The probability of having a male child is more than that of a female child.
4. The sex of a child is determined at the time of fertilisation when male and female gametes fuse to form a zygote.

The correct statements are ______.

Options

• i and iii

• ii and iv

• iii and iv

• i, iii and iv

Answer 1

The correct statements are the sex of a child is determined by what it inherits from the father, and the sex of a child is determined at the time of fertilisation when male and female gametes fuse to form a zygote.

Explanation:

A child's sex is decided by both parent's genetic contributions, with the father's sperm bearing either the X or Y chromosomes. The sex of a kid is determined by the fusion of the father's sperm (X or Y) and the mother's egg (always X) during fertilization.