1) HIV monotherapy is less effective because the virus quickly develops _______ to a single agent. A. Infectivity B. Affinity C. Synthesis D. Resistance
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The question is about HIV monotherapy and its effectiveness. Monotherapy refers to the use of a single drug to treat a disease. Show more…
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Choose all that apply and give an explanation - Individuals homozygous for the CCR5 Delta 32 mutation have resistance against M-tropic HIV strains but are more susceptible to several forms of viral-caused encephalitis. Which statements below are true? a) The missing amino acids prevent the HIV from recognizing and attacking the white blood cell, but then cause the cell to fail to interact with the virus as it normally would. b) This is an example of trade-offs that affect the Coevolutionary Arms Race. c) This beneficial trait is due to an early-acting mutation and occurs in higher than expected frequency in the population due to selection pressure caused by the recent spread of M-tropic strain HIV. d) None of these statements are true.
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Within a few weeks of treatment with the drug 3TC, a patient's HIV population consists entirely of 3TC-resistant viruses. How can this result best be explained? a. HIV can change its surface proteins and resist vaccines. b. The patient must have become reinfected with a resistant virus. c. A few drug-resistant viruses were present at the start of treatment, and natural selection increased their frequency. d. HIV began making drug-resistant versions of its enzymes in response to the drug.
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Within a few weeks of treatment with the drug $3 \mathrm{TC}$, a patient's HIV population consists entirely of 3TC-resistant viruses. How can this result best be explained? a. HIV can change its surface proteins and resist vaccines. b. The patient must have become reinfected with a resistant virus. c. A few drug-resistant viruses were present at the start of treatment, and natural selection increased their frequency. d. HIV began making drug-resistant versions of its enzymes in response to the drug.
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