Microbiology with Diseases by Body System (5th Edition)
5th Edition
ISBN: 9780134477206
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 13, Problem 8CT
Why has it been difficult to develop a complete taxonomy for viruses?
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Chapter 13 Solutions
Microbiology with Diseases by Body System (5th Edition)
Ch. 13 - Why are naked icosahedral viruses able to...Ch. 13 - What characteristics of the genomes of...Ch. 13 - Prob. 3TMWCh. 13 - Prob. 1EDCSCh. 13 - Prob. 4TMWCh. 13 - Prob. 5TMWCh. 13 - Prob. 6TMWCh. 13 - Prob. 7TMWCh. 13 - Prob. 1CCSCh. 13 - Prob. 1MC
Ch. 13 - Prob. 2MCCh. 13 - Prob. 3MCCh. 13 - Prob. 4MCCh. 13 - Prob. 5MCCh. 13 - Prob. 6MCCh. 13 - Prob. 7MCCh. 13 - Prob. 8MCCh. 13 - Prob. 9MCCh. 13 - Prob. 10MCCh. 13 - Prob. 1MCh. 13 - Prob. 1VICh. 13 - Prob. 2VICh. 13 - Prob. 1SACh. 13 - Prob. 2SACh. 13 - Prob. 3SACh. 13 - Prob. 4SACh. 13 - Prob. 5SACh. 13 - What is the difference between a virion and a...Ch. 13 - How is a provirus like a prophage? How is it...Ch. 13 - Prob. 8SACh. 13 - Prob. 9SACh. 13 - Prob. 10SACh. 13 - Prob. 1CTCh. 13 - Prob. 2CTCh. 13 - Prob. 3CTCh. 13 - Prob. 4CTCh. 13 - Prob. 5CTCh. 13 - Prob. 6CTCh. 13 - Prob. 7CTCh. 13 - Why has it been difficult to develop a complete...Ch. 13 - Prob. 9CTCh. 13 - What differences would you expect in the...Ch. 13 - Prob. 11CTCh. 13 - Prob. 12CTCh. 13 - Prob. 13CTCh. 13 - Using the following terms, fill in the following...
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- You are a virologist studying a newly isolated viral strain and have sequenced its genome. You find that the genome contains 25% A, 55% G, 20% C, and 10% U. Which of the following conclusions is likely correct? This is a single-stranded RNA virus This is a single-stranded DNA virus This is a double-stranded RNA virus This is a double-stranded DNA virus No conclusions can be drawn from this informationarrow_forwardWhat is the function of the CRISPR/Cas system? What are the ethical impacts of a CRISPR? What is the main parameter that is used to define new virus families among archaeal viruses? Explain the stages through which bacteria and archaea fight back against infection with viruses.arrow_forwardWhat is the basic classification of viruses. In other words, if you find a new virus, what is the first thing to determine? A. Is this a DNA or an RNA virus? B. Does it cause blue snotty nosed fever? C. does it have a vector? D. does it infect humans?arrow_forward
- Match the terms below to the specific virus/prion example that we have discussed in class: prions, SARS- COV-2, Influenza, or HIV. Some terms may be used for more than one of the four. For ease, use the numbers to associate rather than writing out entire terms. 1. Naked protein 2. Enveloped 3. +ssRNA genome 4. -ssRNA genome 5. ssRNA → dsDNA genome 6. Segmented RNA 7. RNA dependent RNA polymerase 8. Reverse transcriptase 9. Neurodegenerative disease 10. Pneumonia 11. Immunodeficiency 12. Severe inflammation 13. Scrapie 14. White blood cells 15. Respiratory epithelial cells 16. Brain & spinal tissue cells 17. Budding 18. Hemagluttinin 19. Gp120/41 20. Neuraminidase 21. PrP 22. Antigenic shift 23. Antigenic drift 24. Retrovirus 25. Integrase 26. PrEP 27. Provirus 28. CD4/CCR5 receptors 29. Protease 30. Covid-19 31. VCJD 32. AIDS 33. Remesdivir 34. Tamiflu 35. Fusion inhibitors 36. Dexamethosone 37. Relenza 38. Integrase inhibitors 39. Regeneron 40. Nucleoside analogs 41. Xofluza 42.…arrow_forwardwhy do baceria and viruses make good model systems for various genetic studies?arrow_forwardThe table below shows the properties of the genomes of three different viruses. The data were obtained as follows: Nuclease sensitivity was measured by the ability of deoxyribonuclease (DNase) or ribonuclease (RNase) to destroy the genome (a “+" means sensitivity). The ability of the genome to act as mRNA was tested by incubating it in a cell-free system. If amino acids were incorporated into protein, the data are shown as a Finally, the virus particles were tested for the presence of a virion polymerase. If an enzyme was present, the data show whether it could polymerize deoxynucleotide triphosphates (DNTPS) or nucleoside triphosphates (NTPS). "+. Genome Properties Nuclease Virion Can Genome Sensitivity? Polymerase? Be an mRNA? Virus DNase RNase With With DNTPS NTPS #1 - - #2 - - #3 For each virus, indicate the strategy of the genome, using the Baltimore classification. What is the nature of the product of the virion polymerase when present? + + + + + +arrow_forward
- Explain what must be done to identify RNA viruses using genetictechniques.arrow_forwardYou have isolated a new virus that you want to classify using the Baltimore approach to classification. However, you don’t have much to work with. Just an agarose gel, ethidium bromide to strain the nucleic acid on the gel, and a set of enzymes. Assume you have pure virus. Enzyme A digests ssDNA, Enzyme B digests all DNA, and Enzyme C digests ssRNA. Base hydrolysis digests all RNA. You run a gel and get the results below after staining with ethidium bromide: From these results, what type of genome do you think the virus has? Briefly explain your answer.arrow_forwardThe relative amounts of each nitrogenous base are tabulated here for four different viruses. For each virus listed in the following table, indicate whether its genetic material is DNA or RNA and whether it is single stranded or double stranded. Explain your reasoning. Virus T C U G A I 0 12 9 12 9 II 23 16 0 16 23 III 34 42 0 18 39 IV 0 24 35 27 17arrow_forward
- What is a nucleocapsid? Give examples of viruses with the twocapsid types.arrow_forwardClassification of viruses is based on all of the following excepta) type of nucleic acid. b) shape of virus.c) size of virus. d) host infected.e) strandedness of nucleic acid.arrow_forwardWhich of the following are the functions of reverse transcriptase in retroviruses? i) it hydrolyzes the host cell's DNA ii) it uses viral RNA as a template for DNA synthesis iii) it converts host cell RNA into viral DNA iv) it translates viral RNA into proteins v) It uses viral RNA as a template for making complementary RNA strand vi) It degrades RNA from DNA-RNA hybrid Oi, iv and v O ii, iv, v and vi ii and iii ii and viarrow_forward
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