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NEET 2022 · BiologyPrevious Year Question

At which stage of life the oogenesis process is initiated?

Answer: (B) Embryonic development stage. Answer: (B) Embryonic development stage Solution: Oogenesis is initiated during the embryonic development stage when a couple of million gamete mother cells (oogonia) form within each fetal ovary; no more oogonia are added after birth.

  1. A.Puberty
  2. B.Embryonic development stage✓
  3. C.Birth
  4. D.Adult

Correct Answer

(B) Embryonic development stage

Solution & Explanation

Answer: (B) Embryonic development stage Solution: Oogenesis is initiated during the embryonic development stage when a couple of million gamete mother cells (oogonia) form within each fetal ovary; no more oogonia are added after birth. This contrasts with spermatogenesis, which begins at puberty. Hence the correct stage is embryonic development. NCERT Reference: Ch 2, p.32, line 31 — "during the embryonic development stage when a couple of million gamete"

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