cell cycle.............

Cell cycle is the sequence of events by which a cell duplicates its contents and divides in two. There are 5 recognised phases of the cell cycle:

G0 - rest phase,

G1 - 1st gap phase where cells prepare to synthesise DNA and undego mass synthesis,

S - cells synthesise DNA and double 2n to 4n,

G2 - 2nd gap phase where the cells prepare to divide and

M - mitosis