Question

From germinal cell to the formation of ovum, meiotic division takes place in

• A. Oogonium
• B. Primordial germ cell
• C. Primary oocyte
• D. Secondary oocyte

Answer 1

Answer: (C)

Primary oocyte

The ova are formed in the ovary from cells called oogonia which proliferate by mitotic division. All of the oogonia enlarge to form primary oocytes, of which about 2 million are present at birth. No primary oocytes form after birth (in contrast to the continuous production of primary spermatocytes in the male after puberty). Primary oocytes begin the first meiotic division before birth but do not complete prophase until after puberty (arrested in the diplotene stage until before ovulation)

So, the correct answer is 'primary oocyte'