Here's how it works:
* During cell division: The spindle fibers attach to the centromeres of chromosomes, which are the constricted regions where sister chromatids are joined.
* The spindle fibers shorten: This pulls the sister chromatids apart, moving them to opposite poles of the cell.
* Motor proteins: These proteins, such as dynein and kinesin, are responsible for the movement of chromosomes along the microtubules.
* Microtubule depolymerization: This process contributes to the shortening of the spindle fibers, further pulling the chromosomes apart.
This complex process ensures that each daughter cell receives a complete set of chromosomes during cell division.