Which of the following is a useful mechanism of action for an antibacterial drug?

A. Inhibition of protein synthesis
B. Interference with RNA and DNA synthesis
C. Inhibition of cell wall synthesis
D. All of the choices are correct.


Answer: D

Biology & Microbiology

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In the absence of retroviruses, eukaryotes may also undergo reverse transcription if which of the following is present?

A) Alu B) retrograde viruses C) retrotransposons D) prions E) none of the above

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The ____ functions as the body’s thermostat

a. glands b. muscles c. brain stem d. sensory receptors e. hypothalamus

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What macromolecule is composed entirely of beta-glucose units?

a. starch b. chitin c. glycogen d. cellulose e. protein

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New ecological roles that were not previously exploited by an ancestral organism are referred to as:

a. paedomorphosis. b. adaptive zones. c. punctuated equilibrium. d. adaptive radiation. e. sympatric speciation.

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