what moves the chromatids during cell division

During cell division, the chromatids are moved by spindle fibers, which are specialized microtubule structures that guide the movement of chromosomes and chromatids during mitosis. The spindle fibers attach to the chromosomes, which have already duplicated their DNA and aligned across the center of the cell. The spindle tubules then shorten and move toward the poles of the cell, pulling the one copy of each chromosome with them to opposite poles of the cell. This process ensures that each daughter cell will contain one exact copy of the parent cell DNA. The spindle fibers are anchored by centrioles.