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During prophase, the nucleus disappears, spindle fibers form, and DNA condenses into chromosomes (sister chromatids). During metaphase, the sister chromatids align along the equator of the cell by attaching their centromeres to the spindle fibers. During anaphase, sister chromatids are separated at the centromere and are pulled towards opposite poles of the cell by the mitotic spindle. During telophase, chromosomes arrive at opposite poles and unwind into thin strands of DNA, the spindle fibers disappear, and the nuclear membrane reappears.
P-Centrioles move to opposite ends. Spindle fibers form, and chromosomes condense M-Chromosomes attach to the spindle fibers and line up at the equator of the cell A-Chromosomes are spereated by spindle fiber and chromatids go to the poles T-Chromatides decondense back into chromatin and 2 new nuclear envelopes form.