What is the function of centrioles during cell division?

Centrioles play a crucial role in cell division, particularly during mitosis in animal cells. Their primary function is to help organize the mitotic spindle, a structure made of microtubules that is essential for the segregation of chromosomes. When a cell prepares to divide, centrioles duplicate and move to opposite poles of the cell. They serve as anchors for the spindle fibers that extend from the centrioles and attach to the chromosomes at their centromeres.

This organization is vital for ensuring that each daughter cell receives the correct number of chromosomes. By facilitating the correct arrangement and attachment of spindle fibers, centrioles help to optimize the process of chromosome separation, which is critical for the successful division of cells. Without properly functioning centrioles, the mitotic spindle may not form correctly, potentially leading to unequal distribution of genetic material between the daughter cells.