The two main purposes of mitosis are contributing to tissue growth and contributing to tissue repair. Mitosis is a type of cell division that produces two genetically identical "daughter cells". The process is divided into four stages: prophase, metaphase, anaphase, and telophase. The main differences between mitosis and meiosis are that mitosis produces somatic cells, while meiosis produces germ cells, and mitosis occurs in both asexual and sexual organisms, while meiosis occurs only in sexual organisms. The three functions of mitosis and cytokinesis are growth, repair, and asexual reproduction. In conclusion, the two main purposes of mitosis are to contribute to tissue growth and repair.