Cell Cycle and Interphase

Cells that are growing and dividing go through a repeating series of events called the cell division cycle (or cell cycle).Cell cycle is a description of the time course and events in the life of typical cells, divided into four stages, Growth 1, S Phase (DNA synthesis), Growth 2, and cell division (mitosis or meiosis followed by cytokinesis).

The cell cycle is divided into two major phases:

1.Interphase

2.Mitosis

Interphase is the period between division, divided into 3 sub phases (G1, S and G2):

1. G1- cells grow rapidly and new organelle are synthesis
2. S - synthesis of DNA and chromosomes are replicated
3. G2 - cells prepare for mitosis, synthesis protein and mitotic spindle begin to form