Cancer Practice Questions
Try answering these questions. Correct the false answers.
1. Carcinoma in situ is malignant.
2. Cancer cells demonstrate decreased contact inhibition.
3. Xeroderma pigmentosum is an example of a chromosome
disorder.
4. Hormones can act as initiators of cancer.
5. Cancer cells are not antigenic.
6. Most scientists believe that viruses are the major cause
of cancer.
7. Sarcomas usually metastasize via lymphatics.
8. Malignant tumors are usually proceeded by a benign stage.
9. The effects of carcinogens are additive but not dose
dependent.
10. Moldy peanuts cause cancer of the kidneys via a chemical
called aflatoxin.
11. Nuns have a very low incidence of breast cancer while
the Japanese have a high incidence.
12. The most common site for cancer is the lung.
13. More adults develop leukemia than children do.
14. Oncogenes were discovered in 1950.
15. The immune system is of little help in eradicating
cancer.
16. A person with T1N2M+ has a good prognosis.
17. The DNA viruses that implications in human cancer are:
HPV, EBV and HBV.
18. P53 is an example of paraneoplastic syndrome.
19. A Carcinoma is derived from mesenchymal origin.
20. About I in 1000 cancer cells develop the potential to
metastasize.
21. A benign tumor is not anaplastic.
22. Cachectin and tumor necrosis factor are examples of
paraneoplastic syndrome.
23. Radiation works best during the G0 and G1 stages of the
cell cycle.
24. An adenocarcinoma is an example of a malignant tumor of
mesenchymal origin.
25. The site of cancer that has shown the greatest increase
in recent years is the breast.