Multiple choice

What determines the sex of a child?

  1. Chromosomes of the father.

  2. Chromosomes of the mother.

  3. RH factor of the parents.

  4. Blood group of the father.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The father's chromosomes determine the child's sex because males contribute either an X or Y chromosome while females always contribute an X. An XY combination produces a male, while XX produces a female.