Spindle fibers are collections of cylindrical microtubules called centrioles that move chromosomes during cell division. Microtubules are protein filaments that resemble hollow rods. Spindle fibers are a part of the spindle apparatus, which moves chromosomes during mitosis and meiosis to ensure each daughter cell gets the correct number of chromosomes.
Describe the structure and explain the function of the spindle fibres. What is the significance of cytokinesis? Speculate what would happen if cytokinesis did not occur.
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