What structure forms as a network of protein cables during cell division

During cell division, a structure called the mitotic spindle forms as a network of protein cables. The mitotic spindle is a crucial apparatus that orchestrates the movement and segregation of chromosomes during mitosis and meiosis. It is primarily composed of microtubules, which are dynamic protein filaments that extend from two structures called centrosomes, located at opposite poles of the cell.

As the cell progresses through mitosis or meiosis, the microtubules of the mitotic spindle interact with the chromosomes, attaching to specialized structures on the chromosomes called kinetochores. This interaction facilitates the alignment of chromosomes at the metaphase plate during metaphase and the subsequent separation of sister chromatids during anaphase.

The dynamic nature of microtubules allows the mitotic spindle to reorganize and adapt to changes in cell shape and chromosome positioning during cell division. Overall, the mitotic spindle plays a central role in ensuring the accurate distribution of chromosomes to daughter cells, making it essential for the fidelity of cell division.