Cells divide when:
It is essential that any new cells produced contain genetic information that is identical to the parent cell.
A growing and dividing cell goes through a series of stages called the cell cycle.
The cell undergoes a type of cell division called mitosis.
In mitosis, two cells called daughter cells are produced, each identical to the parent cell.
When looking at cells with a microscope, the length of different stages of the cell cycle can be estimated using the formula:
Length of time in phase =