mitosis
Mitosis , or division of the nucleus, occurs only in eukaryotic cells. By the time mitosis occurs, the cells DNA has already replicated. Mitosis occurs in four phases, called prophase, metaphase, anaphase, and telophase. You can see what happens in each phase in Figure below . The phases are described below. You can also learn more about the phases of mitosis by watching this video: https://www. youtube. com/watch?v=gwcwSZIfKlM .