If tumor cells have a faulty, nonfunctional proteinase, they will be unable to undergo which of the following processes?
A. apoptosis
B. mutation
C. angiogenesis
D. mitosis
E. metastasis
Answer: A
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Which of the following uses dsRNA as the genome?
A. Poxvirus B. Rotavirus C. Parvovirus D. Bunyavirus
Quality control is performed to test the validity of catalase production at 68°C. M. fortuitum and M. tuberculosis are used, which yield a positive and negative reaction, respectively. Which one of the following statements explains this discrepancy?
a. Both organisms were most likely incu-bated at the wrong temperature. b. Both organisms were most likely incu-bated on the wrong media before testing. c. The catalase reagent is most likely expired. d. No discrepancy is present. M. fortuitum is catalase-positive and M. tuberculosis is catalase-negative at 68°C.
The sepals of a flower make up the
a. receptacle. b. corolla. c. carpel. d. calyx. e. filament.
In woody plants, the horizontal transport of materials occurs through:a
lenticels. b. pith. c. pith rays. d. phloem fiber caps. e. rays.