Multiple choice

How is the sex of a child determined?

  1. By ovum

  2. By sperm

  3. By environment

  4. By the time of mating

  5. By the number of matings
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sperms have one X and one Y chromosome. The sperm carrying X chromosome when fused with an ovum forms a female child. The sperm carrying Y chromosome when fused with an ovum forms a male child.

Keep practicing — related questions