The cell divides in half, creating two cells. At that point those two cells separate, for an aggregate of four cells. The new cells proceed to separation and gap.
One cell becomes two, then four, then eight, and so on. This continual process of a cell dividing and creating two new cells is known as cell division.
Cell division is part of a cycle of cellular growth and division known as the cell cycle—cells must grow before they divide.
Most cell division produces genetically identical cells, meaning they have the same DNA. The process of mitosis, which specifically is the division of the nucleus, ensures that each cell has the same DNA.
A special form of cell division, called meiosis, produces cells with half as much DNA as the parent cell. These cells are used for reproduction. In prokaryotic organisms, cell division is how those organisms reproduce.
Cells must divide repeatedly for an embryo to develop or for you to grow.
Cells also divide in order to replace damaged or worn-out cells.