Multiple choice

Which of the following plays a crucial role in determining the sex of the offspring in mammals?

  1. Spermatogonium

  2. Spermatozoon

  3. Spermatids

  4. Secondary spermatocytes

  5. Primary spermatocytes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A spermatozoon is a motile sperm cell or moving form of the haploid cell that is the male gamete. A spermatozoon joins an ovum to form a zygote. In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring.

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