Question

Meiosis occurs in :

• A. Adult ovary
• B. Prepubertal testis
• C. At birth in ovary
• D. All

Answer 1

The Correct Option is A

Meiosis is a type of cell division that reduces the chromosome number by half. It is essential for sexual reproduction and occurs in the formation of gametes.

In humans, meiosis occurs in the reproductive organs. Let's evaluate where meiosis takes place from the given options:

• Adult ovary: Meiosis occurs in the adult ovaries during the process of oogenesis, where primary oocytes mature into ova (eggs). This is the correct answer.
• Prepubertal testis: Meiosis does not typically occur before puberty. It begins in the post-pubertal testis during spermatogenesis.
• At birth in ovary: By birth, oocytes in the ovary are paused in prophase I and resume meiosis I only after puberty.
• All: This option is incorrect as meiosis specifically occurs under certain conditions, and not all listed options meet those conditions.

Therefore, the correct location where meiosis occurs among the options provided is in the adult ovary.