Led to discovery of importance of E2F 7. Rb is phosphorylated by active complex. You can inherit a predisposition to cancer, not the disease itself. If you inherit one defective copy of a tumor suppressor gene, nothing happens unless the second copy of the gene gets messed up in a cell. If both copies of a tumor suppressor gene in one cell get inactivated or lost, cancer can result.
Most cancer is sporadic, due to somatic mutation.
Most cancers not usually caused by viruses. Has linear written instructions not blueprints or pictures. Anything not covered today will be done next time. A. Fertilized Egg 1. Egg is very big, lots of stuff.