QUIZ 8 form 1-2009

QUIZ 8 form 1-2009 - BIL 150 QUIZ 8-FORM 1 FALL 2009 1....

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BIL 150 QUIZ 8-FORM 1 FALL 2009 1. Proto-oncogenes can change into oncogenes that cause cancer. Which of the following best explains the presence of these potential time bombs in eukaryotic cells? A. Proto-oncogenes are genetic "junk." B. Proto-oncogenes are mutant versions of normal genes. C. Proto-oncogenes normally help regulate cell division. D. Cells produce proto-oncogenes as they age. E. Proto-oncogenes first arose from viral infections. 2. Which of the following would be most likely to lead to cancer? A. failure of both a proto-oncogene and a tumor-suppressor gene to produce proteins B. failure of a proto-oncogene to produce a protein and amplification of a tumor- suppressor gene C. hyperactivity of a proto-oncogene and activation of a tumor-suppressor gene D. amplification of a proto-oncogene and inactivation of a tumor-suppressor gene E. hyperactivity of both a proto-oncogene and a tumor-suppressor gene 3. Steroid hormone-receptor complexes act in _____. A.
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QUIZ 8 form 1-2009 - BIL 150 QUIZ 8-FORM 1 FALL 2009 1....

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