Which of the following is the major reason why it has been difficult to treat viral infections with chemotherapeutic agents?
A. Viruses have no metabolism and therefore offer no selective point of attack.
B. Actually, viruses are not difficult to treat with chemotherapeutic agents.
C. Viruses use the metabolic machinery of their hosts, which limits many of the potential points of attack.
D. Viral metabolism resembles that of their hosts so there is no selective point of attack.
Answer: C
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a. photosynthesizing cells in a leaf b. roots c. photosynthesizing cells in a stem d. food storage cells in a stem e. soil
Sally had a throat sample taken at a satellite lab within her health care provider's office. What kind of media would be best suited for maintaining the quality of this specimen prior to its arrival in the clinical laboratory?
A. TSA plate B. transport media C. TSB tube D. selective agar E. differential agar
The inheritance pattern in which the mother provides gene products to the developing egg cells is called
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The pH scale is a direct measure of the concentration of:
A) hydrogen ions in a solution. B) hydroxide ions in a solution. C) hydrogen atoms in a solution. D) salt in a solution. E) buffers in a solution.