Question:
During oogenesis the meiotic division is arrested at________ before fertilization.
During oogenesis the meiotic division is arrested at________ before fertilization.
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Two arrest points in oogenesis:
Prophase I (before birth) and Metaphase II (till fertilization)
Updated On: May 8, 2026
- Anaphase I
- Metaphase I
- Anaphase II
- Metaphase II
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept: Oogenesis is the process of formation of female gametes (ova). It involves meiotic divisions with specific arrest stages.
• Primary oocyte: Arrested in Prophase I (from fetal life till puberty)
• Secondary oocyte: Arrested in Metaphase II until fertilization
Step 1: Understand stages of oogenesis.
The primary oocyte undergoes meiosis I to form a secondary oocyte and first polar body.
Step 2: Identify the arrest before fertilization.
The secondary oocyte begins meiosis II but gets arrested at metaphase II.
Step 3: Role of fertilization.
Only after sperm entry does meiosis II complete, forming the ovum.
Step 4: Analyze options.
• (A) Anaphase I: Incorrect
• (B) Metaphase I: Incorrect
• (C) Anaphase II: Incorrect
• (D) Metaphase II: Correct Final Answer: Option (D)
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