Question

The maleness of a child is determined by

Options

• the X chromosome in the zygote

• the Y chromosome in zygote

• the cytoplasm of germ cell which determines the sex

• sex is determined by chance

Answer 1

the Y chromosome in zygote

Explanation -

In humans, the sex of the child is determined by the sex chromosome inherited in the zygote from the father. A human male has X and Y sex chromosomes. If a zygote receives X chromosome from the father, it will develop into a female and if a zygote receives Y chromosome from the father, it will develop into a male.