Here's how it works:

* Spindle fibers are made of microtubules, which are protein filaments. These fibers form a structure called the mitotic spindle.

* Centrioles are small, cylindrical structures that are located near the nucleus. During mitosis, centrioles move to opposite poles of the cell and help to organize the spindle fibers.

* The kinetochore is a specialized protein structure that is located at the centromere of each chromosome.

* Spindle fibers attach to the kinetochore of each chromosome. This attachment is crucial for separating the duplicated chromosomes during mitosis.

The spindle fibers pull the chromosomes apart, ensuring that each daughter cell receives a complete set of chromosomes.