Interphase (L. inter-between, Gk, phasis – aspects) is a series of changes that takes place in a newly formed cell and its nucleus before it becomes capable of dividing again. It is a period of intense synthesis and growth. The interphase takes approximately 75-95% of the entire generation time. It is further divided into three periods of phases first gap or $G_{1}$-phase, synthetic or S-phase and second gap or $G_{2}$-phase Duration of these phases varies in different organisms