21. The development of Ráshighly active antiretroviral therapy, isa more Single
ID: 202697 • Letter: 2
Question
21. The development of Ráshighly active antiretroviral therapy, isa more Single drug that is more powerful than those previously used single drug that targets multiple stages in the viral replicative cycle Combination of drugs that target different stages in the viral replicative cycle Combination of drugs that target the same stage in the viral replicative cyele 22. Why are fungal infections hard to treat? A. Very dfficult to diagnose B. Bad side effects for most drugs used to treat them C. F ungi are eukaryotes so what hurts them typically harms human cells mycological physicians currently practicing E. Both B and C are correct 23·In animals, such as grasshoppers, the young resemble the adults during development This is termed? A. Juvenile development B. Degenerate aging C. Partial maturation D. Incomplete metamorphosis E. Haplodiploidy 24. An electron microscope technician took multiple images of viruses for two different research labs. Unfortunately, he forgot to label the samples and now they are mixed up. One lab studies viruses that attack bacteria, and the other lab studies viruses that attack humans. How can he sort the viruses? A. The larger virions are human pathogens and the smaller virions are bacterial pathogens B. The more complex virions are human pathogens and the less complex virions are C. The less complex virions are human pathogens and the more complex vinons are D. He cannot-viral structural complexity and size does not correlate with the complexity of bacterial pathogens bacterial pathogens. the organism 25. Currently, the largest known organism on Earth is A. Blue whale B. Colossal squid C. Honey mushroom D. Giant sequoia E. African bush elephantExplanation / Answer
21. C - Combination of drugs target different stages of virus life cycle.
The different types of target used are entry or fusion inhibitors (which include CCR5 receptor antagonists),
nucleoside and nucleotide reverse transcriptase inhibitors, non-nucleoside reverse transcriptase inhibitors, integrase inhibitors, protease inhibitors.
22. Both B and C,
Funus are eukaryotes so drug finding is very difficult and makes lot of side effect if we use the drug.
23. D - Incomplete metamorphosis.
24. C. The less virios are human pathogen and more complex are bacteria pathogen.
In lab T4 bacteriophage is used for bacterial infection and it is complex structure.
25. A. Blue whale
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