Question

In oogenesis, meiosis I occurs

A. In early fetal life.
B. At birth
C. Just before ovulation
D. After ovulation but before fertilization
E. After fertilization.

Answer 1

The correct answer is A. In early fetal life.

Step-by-step explanation:

Oogenesis is the process of formation of female gametes in the reproductive organ called ovary. In females oogenesis process starts even before the birth of the female. It starts in fetal stage when primordial germ cells moves from yolk cells to ovaries.

These germ cells are diploid and increase in number to millions by dividing mitotically. Developed germ cells called primary oocytes and during fetal stage they enters in meiosis I and gets arrested in the prophase I stage of meiosis I. This phase is then completed after the puberty takes place.