Which of the following is most likely to occur when a tumor-suppressor gene is mutated?

A. The tumor-suppressor gene may be overactive.
B. The resulting tumor-suppressor protein would further suppress cell proliferation.
C. The resulting tumor-suppressor protein would activate an oncogene.
D. The tumor-suppressor gene and resulting protein may lose its function and ability to suppress cell proliferation.
E. None of the choices are possible.


D. The tumor-suppressor gene and resulting protein may lose its function and ability to suppress cell proliferation.

Biology & Microbiology

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Which of the following correctly matches the name of a biological clock to the timescale at which it operates OR the type of activity with which it might be associated?

A. annual: tides B. circadian: periodical cicadas C. lunar: feeding, sleeping D. circadian: feeding, sleeping E. lunar: days or years

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Fungal spores are a major cause of

A. anaerobic disease. B. fermentation. C. food spoilage. D. asthma.

Biology & Microbiology

Members of a population have similar

a. phenotypes. b. morphological traits. c. physiological traits. d. behavioral traits. e. all of these

Biology & Microbiology

Jogging is considered appropriate exercise for the obese individual.

a. true b. false

Biology & Microbiology