Cell Division

The process of creating new cells from preexisting ones is called Cell division. It is a continuous process that occurs in all living things.

In animals, including humans, it all starts with the fusion of a male and female sex cell, such as a sperm and an egg, to make a fertilized cell, called a zygote.

This first cell divides into two, then four, then eight, and so on. This continuous process of a cell dividing and creating two new cells builds the trillions of cells that make up your body.

There are two types of cell division: mitosis and meiosis.

In mitosis, one cell splits into two identical cells, each with the same DNA.

Meiosis produces special cells like sperm or egg cells. These cells have only half the DNA of their parent cell and are used to create new life.

Cell division is also essential for growth and repair. As you grow taller, you create new bone and muscle cells. When you cut your finger, cell division helps your skin heal by replacing old, worn-out cells with fresh ones.