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

What is the main function of the spindle fibers during mitosis ?

1. To separate the chromosomes

2. To synthesize new DNA

3. To repair damaged DNA

4. To regulate cell growth

Doubtly Asked 30 Oct 2026 NEET UG 2025 Practice test neet Save WhatsApp Report

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Answer: 1. To separate the chromosomes

Key idea: Spindle fibres are microtubules that attach to the kinetochores.

During anaphase they pull sister chromatids to opposite poles, so they separate the chromosomes. DNA synthesis occurs in S phase, and repair and growth regulation are done by other mechanisms. Option 1.

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

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What is the main function of the spindle fibers during mitosis ?

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