<em>Gene expression makes cellular differentation possible.
</em>
The human body is made of cells. We have a cellular structure in or DNA that allow us to live. Cellular differentiation is the way generic embryonic cells become specialized. For this to happen, cells have to go to a process called gene expression. This is a combination of genes that are expressed or repressed, which mean they turn on and they turn off. This process permits cellular function. The Human body sends signals that are answered by this gene expression. So it is true that gene expression makes cellular differentiation possible.
