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Biology · PYQ NEET UG 2020

हिन्दी

Meiotic division of the secondary oocyte is completed:

  1. At the time of copulation
  2. After zygote formation
  3. At the time of fusion of sperm with an ovum
  4. Prior to ovulation

Correct answer · Option 3

At the time of fusion of sperm with an ovum

Explanation

The secondary oocyte is arrested in metaphase II of meiosis. Meiotic division is completed only when a sperm fertilizes the ovum, triggering anaphase II.

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