1. The biggest single risk factor for cancer is
a. age
b. environmental mutagens and carcinogens
c. sunlight
d. tobacco
e. all of the above are about equal.
2. True or False: Cancer occurs more frequently in epithelialtissues than in connective tissues
3. True or False: Many different cancers often have mutations inthe same
4. Senescent cells
a. Are normally smaller than ordinary cells
b. Are metabolically inactive
c. Are removed from the cell cycle
d. Are known to prevent cancers from arising
e. All of the above
5. The most common mutation in cancer is a mutation to the genenamed _____
6. The protein ubiquitin is attached to other proteins byubiquitin ligase in order to______________________________________________________________.
7. Some RNA viruses are able to insert their genomes into host(human) cells by use of the enzyme____________________________________________
8. Many scientists believe that telomere attrition is ananti-cancer mechanism used by the body to ________________ cell____________________.