Virus nuclease sensitivity genome as mrna polymerase

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Virus Nuclease Sensitivity Genome as mRNA Polymerase
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3 A Dnase - - B Rnase + - C Dnase - + D Rnase - + E Rnase + - 8) Given Baltimore's scheme, a positive sense single-stranded RNA virus such as the polio virus would be most closely related to which of the following? A) T-series bacteriophages B) retroviruses that require a DNA intermediate C) single-stranded DNA viruses such as herpesviruses D) nonenveloped double-stranded RNA viruses E) linear double-stranded DNA viruses such as adenovirus Answer: B Topic: Concept 19.2 Skill: Synthesis/Evaluation 9) Based on the above table, which virus meets the Baltimore requirements for a retrovirus? 10) Based on the above table, which virus meets the requirements for a bacteriophage? 11) A linear piece of viral DNA of 8 kb can be cut with either of two restriction enzymes (X and Y). These are subjected to electrophoresis and produce the following bands: Cutting the same 8 kb piece with both enzymes together results in bands at 4.0, 2.5, 1.0, and 0.5. Of the possible arrangements of the sites given below, which one is most likely?
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4 12) Which of the following accounts for someone who has had a herpesvirus-mediated cold sore or genital sore getting flare-ups for the rest of life? 13) In many ways, the regulation of the genes of a particular group of viruses will be similar to the regulation of the host genes. Therefore, which of the following would you expect of the genes of the bacteriophage? 14) Which of the following is characteristic of the lytic cycle? A) Many bacterial cells containing viral DNA are produced.
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5 B) Viral DNA is incorporated into the host genome. C) The viral genome replicates without destroying the host. D) A large number of phages is released at a time. E) The virus-host relationship usually lasts for generations. Answer: D Topic: Concept 19.2 Skill: Knowledge/Comprehension
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