Mitosis

During Interphase the cell chromosomes duplicate. The nucleolus is clearly visible in the nucleus.

During the first stage of mitosis, prophase, the chromatin condenses and the chromosomes become visible. Also the nucleolus disappears, the nuclear membrane fragments, and a spindle fibers form. During metaphase, the nuclear membrane fragmentation is complete and the duplicated chromosomes line up along the cell's equator.Chromatid pairs are lined up in the center of the cell.

Anaphase is when the sister’s chromosomes separate moving to one side of the cell. Each chromosomes wrap around each other.

Telophase is the final step; the cytoplasm is beginning to separate.

Cytokinesis is when the spindle fibers not attached to chromosomes began breaking down until only that portion of overlap is left. It is in this region that a contractile ring leaves the cell into two daughter cells.