The fact that we can talk about chemical carcinogens, tumor viruses, and genetic predispositions to cancer suggests that cancer has many causes . There is now, however, a unifying model that allows us to think about the initiation of all cancers in such a way that these diverse causes are all doing essentially the same thing to make cancer come about. Describe that model. Give three examples of behaviors that increase one s risk of getting cancer. Compare them in their relative Cancer risk .
Radiation is one of the most commonly used treatments for advanced cancer.
Radiation is also a risk for cancer. Sometimes a cell s machinery for DNA repair becomes faulty. Give an example of a mutation that could have this phenotype. Exposure to light in the UV-B range is clearly involved in the development of skin cancer. Light of the X-ray wavelength is also carcinogenic.