The many cells constituting a body are controlled and are divided and multiply, but control collapses, and the multiplied malignant tumor which you do not polish without the order develops it, but the kind of several tens is authorized with the thing which what you brake not to develop it is called "a cancer-restraining gene" by.
"Cancer-restraining gene" is born and gets the main cause of the familial tumor (hereditary cancer), and it is a thing with the variation.
You have variation and, in the case of the person who holds the factor of the familial tumor in a certain autosome (22 pairs of 44 of them) by one pair except sex chromosomes such as X Y, appear in one of pairs for 60 trillion somatic cells because this variation occurs since a fertilized egg.
On the other hand, setting it up of restraining it operates cancer from a normal thing among a certain genes by two, but it is that it is thought from probability theory enough to occur while 60 trillion false reproduction regenerates connections to all|all of about the same thing of "the cancer-restraining gene" accidentally.
As for the cell that all 60 trillion cells produced false reproduction during reproduction, as for "the oncogene" in the cell, it is no function really.
As a result, it is variation copies it likewise, and spermatid and the ovum cell to be regenerated (1/2, actually, establishment) that you copy it to a total cell, and the variation that came into existence to "a cancer-restraining gene" is played.
