All of the following are reverse transcriptase inhibitors used to treat HIV infection EXCEPT ________.

A. azidothymidine
B. lamivudine
C. zalcitabine
D. didanosine
E. acyclovir


Answer: E

Biology & Microbiology

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Which of the following is the least successful

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Which of the following is true about the “synthetic” bacterium made in 2010?

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When chromosomes have either duplications or deletions, the chances that the mutation will be harmful are a function of:

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The effectiveness of geographic barriers in

promoting speciation is related most to a. the size of the barrier. b. the inability of the organisms to overcome the barrier. c. the speed at which the barrier forms. d. how long the barrier exists. e. the size of the population it separates.

Biology & Microbiology