NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Biology
- Chapter
- Chapter
NEET 2026 · Biology · Chapter
Which of the following events of oogenesis occurs specifically...
Which of the following events of oogenesis occurs specifically during the embryonic development stage in human females?
Options
- ACompletion of meiosis I to form a large secondary oocyte
- BFormation of a couple of million oogonia within each fetal ovary
- CTransition of primary follicles into mature Graafian follicles
- DExtrusion of the second polar body
Correct answer
B. Formation of a couple of million oogonia within each fetal ovary
Step-by-step solution
Oogenesis is initiated during the embryonic development stage when a couple of million gamete mother cells (oogonia) are formed within each fetal ovary. No more oogonia are formed and added after birth.
Completion of meiosis I occurs just prior to ovulation during the reproductive years.
Transition of primary follicles into mature Graafian follicles occurs during the menstrual cycle after puberty.
Extrusion of the second polar body occurs only after the entry of the sperm into the secondary oocyte (fertilization).
Answer: Formation of a couple of million oogonia within each fetal ovary
Completion of meiosis I occurs just prior to ovulation during the reproductive years.
Transition of primary follicles into mature Graafian follicles occurs during the menstrual cycle after puberty.
Extrusion of the second polar body occurs only after the entry of the sperm into the secondary oocyte (fertilization).
Answer: Formation of a couple of million oogonia within each fetal ovary