1. S-phase 2. Prophase 3. Metaphase 4. G ₂ phase

Topic: Cell cycle, mitosis, meiosis· Cell Structure and Function

The centriole undergoes duplication during :

1. S-phase

2. Prophase

3. Metaphase

4. G\(_2\) phase

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Answer: 1. S-phase

Centrioles duplicate during the S phase of the cell cycle (in the cytoplasm, alongside DNA replication), so that two centrosomes are available for spindle formation at mitosis.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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The centriole undergoes duplication during :

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