Answer:
Mitosis is the phase where the cell splits its chromosomes equally among two daughter cells, and branches off into more cells.
In mitosis, there is the prophase, prometaphase, metaphase, anaphase, and telophase.
The prophase is where the nuclear envelope breaks down and chromosomes attach to spindle fibers. The metaphase is where chromosomes line up at the equator. In the anaphase, the cells move to opposite poles to split. Last but not least, the telophase. In this final phase, the two nuclei split into new cells.