2025 Cell Cycle and Cell DivisionMitosis - Anaphase Easy Question 4 of 87 in Cell Cycle and Cell Division

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

A To separate the chromosomes
B To synthesize new DNA
C To repair damaged DNA
D To regulate cell growth

The answer is A.

Solution

Spindle fibers attach to kinetochores to pull sister chromatids to opposite poles during anaphase.

Spindle fibers (microtubules) attach to kinetochores of chromosomes during metaphase and contract during anaphase to pull sister chromatids (daughter chromosomes) towards opposite spindle poles.

Concept Spindle Apparatus Function

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87 questions from this chapter have appeared across 23 exam years.