A person is infected with HIV. The individual is treated with several drugs, including azidothymidine (AZT). Which of the following is the most immediate effect of this drug?
A. It allows reverse transcriptase to proofread, and this will allow successful treatment with a vaccine.
B. It does not allow the viral genome to become integrated into the host genome.
C. It does not allow the virus to make a DNA copy of its genome.
D. It inhibits formation of the capsid.
E. It inhibits budding, as it is the reverse of the process by which HIV enters a cell.
Answer: C
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What category describes a species that, while not presently at risk of extinction, could likely be at risk of extinction in the near future?
A. A species of concern B. A threatened species C. An invasive species D. An endemic species
Maurice Wilkins and Rosalind Franklin obtained X-ray diffraction photographs that indicted that DNA has a ____________________ shape with a constant diameter
Fill in the blank(s) with correct word
A new species of microbe is discovered near a hydrothermal vent on the ocean floor by DNA sequencing. It can regulate many intracellular factors in order to survive in the vent. Which of these factors can the microbe NOT regulate?
What will be an ideal response?
The evolution of flowers and fruit corresponds with the evolution of:
a. double fertilization. b. seeds. c. gametophytes. d. pollen. e. All of the above are correct.