Question

Statement I: In the fetal ovary, oogonia start division, enter into prophase-I of the meiotic division and get temporarily arrested at that stage, are called primary follicles.
Statement II: Each primary follicle then gets surrounded by a layer of granulosa cells and is called primary oocyte

• A. Both statements I and II are correct and II explains I
• B. Both statements I and II are correct and II does not explain I
• C. Statement I is true and statement II is false
• D. Both statements I and II are false

Answer 1

Answer: (D)

• Oogenesis is initiated during the embryonic develop ment stage when a couple of million gamete mother cells (oogonia) are formed within each fetal ovary (about third month of foetal ovary), no more oogonia are formed and added after birth.
• These cells start division and enter into prophase-I of the meiotic division and get temporarily arrested at that stage, called primary oocytes.
• Each primary oocyte then gets surrounded by a layer of granulosa cells and then called the primary follicle.