An unmutated version of an oncogene in a normal cell is called a ____
a. growth-inhibiting factor gene
b. driver gene
c. proto-oncogene
d. pre-oncogene
e. tumor suppressor gene
ANSWER: c
Biology & Microbiology
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K. denitrificans, which is nonhemolytic and tends to pit the agar, also grows on selective media that support the growth of which gram-negative diplococci?
a. Capnocytophaga spp. b. C. hominis c. A. aphrophilus d. N. gonorrhoeae
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Filter feeders on coastal shelves tend to dominate in areas that have:
a. moving currents and coarse sediments. b. no currents and fine sediments. c. silty areas. d. muddy areas.
Biology & Microbiology
The intermediate host for many flukes is a:
A. human. B. cow. C. dog. D. cat. E. snail.
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Which grouping of elements is found in carbohydrates?
A. N - S - O B. Ca - H - O C. C - H - P D. C - H - O E. H - O - Cl
Biology & Microbiology