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.
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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
Fungal spores are a major cause of
A. anaerobic disease. B. fermentation. C. food spoilage. D. asthma.
Members of a population have similar
a. phenotypes. b. morphological traits. c. physiological traits. d. behavioral traits. e. all of these
Jogging is considered appropriate exercise for the obese individual.
a. true b. false