Mitosis is a type of cell division that occurs in all complex multicellular organisms (eukaryotes) . The main purpose of mitosis is to produce two daughter cells that are identical to the parent cell, ensuring that the two daughter cells inherit an equal and identical complement of chromosomes. Mitosis is essential for growth, repair, and asexual reproduction. It plays an important role in the development of an organism, and it continues throughout life to replace cells that have died. Mitosis is divided into five phases: interphase, prophase, metaphase, anaphase, and telophase. During interphase, the DNA in the cell is copied in preparation for cell division, resulting in two identical full sets of chromosomes. During prophase, the chromosomes coil and shorten, and become visible. During metaphase, the chromosomes line up along the center of the cell. During anaphase, the paired chromosomes separate and move to opposite poles of the cell. Finally, during telophase, the chromosomes reach the poles of the cell and begin to uncoil, and two new nuclei form. If mistakes are made during mitosis, they can result in changes in the DNA that can potentially lead to genetic disorders.