Now, if these two genes are normal, then there really will be no problem. In fact, if one of them is abnormal, the other one is normal. Usually the cell will be functional and will be able to actually shut down and terminate the process by using phosphatases. And by the way, because the phosphatases turn off the activity of these pathways and that essentially decreases the likelihood that tumor growth will actually take place, these genes that code for phosphatases are also known as tumor suppressing genes. And the phosphatase themselves are known as tumor suppressing molecules because it's a result of these molecules that tumors do not actually develop. So phosphatases are called tumor suppressing molecules because they inactivate proteins and enzymes that drive that signal transduction pathway.