Cell division is just one of several stages a cell goes through. The number of cells divides and increases in number to produce new cells. The cell cycle is a repeating series of events that include growth, DNA synthesis, and cell division. The cell cycle is divided into two phases called (i) Interphase – a period of preparation for cell division, and (ii) Mitosis (M phase) – the actual period of cell division. Interphase is further subdivided into G1, S and G2.