Since the number before the tens place is 1, that means you will round the number down instead of up so your answer is :
4620
Mitosis happens to our skins cells to replace those that are damaged or have died. Cells have a limit, and then they commit cell suicide or apoptosis. Before dying or be damaged, the skin cells first reproduce themselves in order help keep our body protected with our first layer of defense.
The resulting two cells will have an identical genetic composition.
Darwin noticed that there were different kinds of the same species. For example, he studied four different kinds of finches. Each one had a different beak and are different kinds of food. This was the first time genetic diversity had been so obvious to humans.