12 hours
There is only one parent need in mitosis. :)
3 HOURS WITH NO STOPS AND NOT SLOWING DOWN
they're human aren't they? so wouldn't the answer be how many hours of sleep does a human need? and the answer is about 8 hours.
You need 5 hours or exercise a day
5 hours
for 7 hours
300 hours
because many of your cells need oxygen to start chemical reaction processes such as mitosis and meiosis.
3 hours they need to do anything they can
How many hours of school does one need to do massage in a Chiropractic office?
As many as they need to.
You do need mitosis to live. If we didn't have mitosis we all would of died by now. Mitosis is the process of cell multiplication (and all the cells are identical), if we lose that ability we wouldn't be able heal cuts, for example, we would all bleed to death. Also, if our cells stopped reproducing, our internal organs would deteriorate in minutes because there is nothing to provide them with the nutrients they need to function.