All complex organisms originated from a single fertilised egg.
Every cell in your body started here, through cell division the numbers are increased
Cell then specialise and change into their various roles
Mitosis is the process by which new body cell are produced for:
Replacing damaged or old cells.
This is a complex process requiring different stages
2 daughter cells identical to original
Chromosomes are copied and double in number
Chromosomes now split
All daughter cells contain the same genetic information from the original parent cell from which it was copied.
Every different type cell in your body contains the same genes, but only some act to make the cells specialise – e.g. into nerve or muscle tissue.
Mitosis – bone cell slides
2 daughter cells