Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 5, Problem 8Q
Compare and contrast the processes of latency and lysogeny in viruses.
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Explain the reason why segmentation of the genome provides a strong evolutionary advantage for negative strand viruses.
Define the terms "latency" and "lysogeny" as they refer to viruses.
Describe at least TWO ways these two processes are similar.
Describe at least TWO ways these two processes are different.
Please explain briefly the steps involved in the viral multiplication cycle. How is each step important? Please explain the difference between virus and bacteriophage multiplication.
Chapter 5 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 5.1 - Explain what it means when viruses are described...Ch. 5.1 - Identify better terms for viruses than alive or...Ch. 5.1 - Which statements are accurate regarding properties...Ch. 5.2 - Prob. 3AYPCh. 5.2 - Describe the function and structure(s) of viral...Ch. 5.2 - Distinguish between enveloped and naked viruses.Ch. 5.2 - Prob. 6AYPCh. 5.2 - Diagram the possible nucleic acid configurations...Ch. 5.2 - Medical Moment Q. Antibiotics targeting bacteria...Ch. 5.3 - Diagram the five-step life cycle of animal...
Ch. 5.3 - Define the term cytopathic effect and provide one...Ch. 5.3 - Discuss both persistent and transforming...Ch. 5.3 - Provide thorough descriptions of both lysogenic...Ch. 5.3 - Prob. 2NPCh. 5.3 - Prob. 3NPCh. 5.4 - List the three principal purposes of cultivating...Ch. 5.4 - Describe three ways in which viruses are...Ch. 5.4 - Prob. 4NPCh. 5.5 - Prob. 14AYPCh. 5.5 - Prob. 2MMCh. 5.5 - Prob. 5NPCh. 5.6 - Analyze the relative importance of viruses in...Ch. 5.6 - Discuss the primary reason that antiviral drugs...Ch. 5 - ___% of human DNA is thought to consist of viral...Ch. 5 - Prob. 2QCh. 5 - Construct a scenario in which viral latency and...Ch. 5 - Prob. 4QCh. 5 - If viruses that normally form envelopes were...Ch. 5 - Viruses use the host cell cytoplasmic space as...Ch. 5 - The general steps in a viral multiplication cycle...Ch. 5 - Compare and contrast the processes of latency and...Ch. 5 - Pathogenic bacteria lysogenized by phages can...Ch. 5 - When phage nucleic acid is incorporated into the...Ch. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Prob. 13QCh. 5 - Prob. 14QCh. 5 - Prob. 15QCh. 5 - Prob. 16QCh. 5 - Prob. 17QCh. 5 - Construct an argument for whether humans or...Ch. 5 - Since 2000, the number of orders of viruses...Ch. 5 - Prob. 20QCh. 5 - Prob. 21QCh. 5 - Prob. 1VC
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- Describe the classes of viruses based on theirgenomic characteristics. For each class, describe how viralmRNA is made and how the viral genome is replicated.arrow_forwardDiscuss the salient features of viruses with the help of diagram?arrow_forwardExplain the difference between a virus and a retrovirus. Give an example of both. Thank youarrow_forward
- a. How are viral envelopes formed? Why are enveloped viruses that infect plants and bacteria rare? b. Outline the life cycle options of a temperate phage upon entering a host cell. c. Consider the 5 steps of a virus life cycle. List three structures and/or processes that are unique to viruses and would make good drug targets for an antiviral agent. Explain your rationale for each choice.arrow_forwardDescribe the importance of horizontal gene transfer between a virus and host.arrow_forwardConsider the separate stages of an animal virus life cycle. Assemble a short list of structures and processes that are unique to the virus and would make good drug targets for an antiviral agent. Explain your rationale for each choice.arrow_forward
- Describe the functions of the transcriptase/replicase complex in coronavirus replication.arrow_forwardWhat is meant when it is said that a virus is in an inactive state?arrow_forwardSome retroviruses that have a wide host range have been developed for use in treatment of diseases or syndromes. These viruses do not result in a productive infection because they lack critical genes for viral replication, but they do carry DNA sequences that allow them to be packaged into infectious particles. Once in the host cell the viral DNA is released and integrates into the cell's genome. The advantage to this strategy is that the delivery of the DNA is very efficient. What is one possible problem of using a virus that can integrate into the human nuclear genome? Multiple Choice The virus carries genes that will interfere with host cell activities. The viral DNA sequences could still cause a disease. Since the viral DNA sequences no longer contain essential genes for viral replication the host cell may not be able to replicate either. The integration could disrupt an essential gene or genes.arrow_forward
- Retroviruses, like the HIV, contain an enzyme called reverse transcriptase. Explain the flow of genetic information in HIV.arrow_forwardbriefly explain the situation below. Larger viruses usually have a double-stranded genome, whereas small viruses typically have a single-stranded genome. What reasonable explanation can you offer for this observation?arrow_forwardCompare and contrast how Poliovirus and HIV can enter the host cell and describe how translation is initiated in both viruses.arrow_forward
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY