What is the main function of the spindle fibers during mitosis?
- To repair damaged DNA
- To regulate cell growth
- To separate the chromosomes
- To synthesize new DNA
Answer
(3) To separate the chromosomes
Solution
Spindle fibres attach to the kinetochores of chromosomes at metaphase; at anaphase they shorten and pull the sister chromatids (daughter chromosomes) towards opposite poles.
Thus their main function is to separate the chromosomes.
Answer: (3)