Why are spindle fibers important during mitosis?
A. They help separate the chromosomes.
B. They break down the nuclear membrane.
C. They duplicate the DNA
D. They divide the cell in half.
A. They help separate the chromosomes.
The correct answer is A. They help separate the chromosomes.
During mitosis, spindle fibers are important for ensuring the accurate separation of chromosomes into two daughter cells. These fibers, which are formed from microtubules, attach to the chromosomes at specialized regions called centromeres. As the spindle fibers shorten and lengthen, they help pull the duplicated chromosomes apart, ensuring that each daughter cell receives a complete set of chromosomes.