Cell division is the process by which cells can make more cells. It only allows organisms to become more complex, it also allows organisms to replace cells and repair tissue. Mitosis and meiosis are two different processes of cell division. Mitosis is the process by which a cell creates identical copies. In these cells, the DNA is exactly alike. Meiosis is the process by which a cell divides into two, non identical, cells, meaning the DNA is not the same. Deoxyribonucleic acid, or DNA, provides instructions to produce many different types of proteins needed to make structures within living things.