Which of the following is not a characteristic of cancer cells that distinguishes it from normal cells?Cancer cells utilize mitosis to divide.
The ends of the chromosomes are “capped” with special repetitive DNA sequences calledtelomeres
Contact inhibition means thatwhen cells come in contact with a neighbor, they stop dividing.
Cancer is a single disease that affects one in three Americans.false
Which of the following is not a stage in carcinogenesis?differentiation
Which of the following characteristics is not associated with metastasis?The low oxygen content in the middle of a tumor may turn on genes for angiogenesis.
A benign tumor is not dangerous because it cannot metastasize.false
Proto-oncogenescode for proteins that promote the cell cycle.
Which of the following is not a type of proto-oncogene?the gene for p53
If a tumor suppressor gene becomes mutated, which of the following is not true?A “gain-of function” mutation has occurred.
Tumor suppressor genes are often likened to the gas pedal of a car.false
How many Americans will deal with cancer in their lifetime?1 in 3
Cancers of epithelial tissues are calledcarcinomas
What is the most common cancer found in males?prostate
What type of cancer causes the most deaths in males?lung and bronchus
Hodgkin lymphomas develop frommutated B cells.
Which is responsible for more cancer deaths in women: breast, colon and rectum, pancreas, or ovary?breast
Which accounts for more cancer deaths in males: bladder, pancreas, esophagus, or prostate?prostate
What was the name of the first gene associated with breast cancer?BRCA1
Both heredity and environmental risk factors come into play in the development of cancer.true
What do BRCA1 and RB have in common?Both are tumor suppressors.
If you only inherit one mutated copy of BRCA1 and the other copy is normal, you will not develop breast cancer.false
Which of the following is not a type of ionizing radiation?ultraviolet radiation
In the case of a proto-oncogene like RET, both copies of the gene must be mutated to increase a predisposition to cancer.false
A carcinogen is not a mutagen.false
Which of the following is not found in tobacco smoke?asbestos
Thus far no evidence has been found that nonionizing radiation, such as the energy given off by cell phones, causes cancer.True
Which of the following is not a protective behavior that will help prevent cancer?Increase consumption of salt-cured, smoked, and nitrite-cured foods.
Which of the following dietary changes will not reduce your risk of developing cancer?Decrease your consumption of high-fiber foods.
Epstein-Barr virus is routinely isolated from cases of cervical cancers.false
Which of the following is not one of the seven warning signs?a cut that bleeds
The American Cancer Society publicizes seven warning signals, which spell out the word CAUTION. The “C” in CAUTION stands for change inbowel or bladder habits.
The earlier a cancer is detected, the more likely it can be effectively treated.true
Currently most cancers are diagnosed before metastasis.false
Which of the following is not one of the things to watch for in a mole?a solid color, usually brown
A mole becomes suspicious when it is greater than 6 mm in diameter. How big is 6 mm approximately?about the size of a pencil eraser
Which of the following tests is not used to screen for colon cancer?blood test
How often should a woman do a shower self-examination of her breasts for lumps, knots, or changes?once a month
Which type of test is particularly useful in analyzing tumors in tissues surrounded by bone?MRI
Which two tests are done for prostate cancer?digital rectal examination, PSA
When should screening for colorectal cancer begin?50’s
What type of test is a CEA test?a tumor marker test
What type of screening test could be used to determine the likelihood that someone might develop cancer?genetic test
Which of the following is not a standard therapy for cancer treatment?immunotherapy
If the gene for telomerase is turned off in a cell, this is an indication this is a cancer cell.false
Unfortunately, the cancer in Ted’s body had spread to multiple sites. Which is the most viable treatment option to handle Ted’s cancer?chemotherapy
Which treatment does not work for leukemia?surgery
Which of the following is a side effect of radiation therapy that is not also a side effect of chemotherapy?dry, red, irritated skin and/or blisters
Which of the following is not a type of chemotherapy?bone marrow transplants
Taxol is used to treat what type of cancer?Ovarian cancer
What is the survival rate for children with childhood leukemia?80%
Which of the following is not a type of immunotherapy?anti-p53 engineered adenovirus
Melacine, used against melanoma, is a type of cancer vaccine.true
Antiangiogenic drugs cause cytotoxic T cells to attack tumor cells.false
When the p53 gene is overexpressed in normal cells, the cells are killed.false