Enhanced light micrograph of roundworm (ascaris) cells in the late telophase stage of mitosis. Mitosis is the cell division of a nucleus, typically consisting of four stages: prophase, metaphase, anaphase, and telophase. In telophase, chromosome sets assemble at the two poles, a nuclear envelope reforms around them, the spindle disappears, and the nucleolus reforms. Magnification 160x @ 35mm.