Answer:
Explanation:
During growth and cell division, the cell makes sure there is strict regulation of the processes involved in the copying of DNA into daughter cells, errors are carefully checked for and repaired where possible. The cycles possess check point (restriction points) that are under the control of special genes that initiates repair when these errors occur, if the error cannot be corrected the cell undergoes apoptosis. Cancer cells have there tumor suppressor gene ( example include BRCA1, p53 BRAC2 which are involved in DNA repair) inactivated.
