Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 18, Problem 11CONQ
What is a prophage, a provirus, and an episome? What is their common role in a viral reproductive cycle?
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What is a prophage, a provirus, and an episome? What is theircommon role in a viral reproductive cycle?
What are the similarities and differences among viral genomes?
What are the structural components of a virus?
Chapter 18 Solutions
Genetics: Analysis and Principles
Ch. 18.1 - 1. What is a common feature found in all viruses?...Ch. 18.1 - 2. Viral genomes can be
a. DNA or RNA.
b....Ch. 18.2 - Prob. 1COMQCh. 18.2 - Prob. 2COMQCh. 18.3 - A mutation in phage results in 10-fold greater...Ch. 18.3 - 2. The cl gene that encodes the λ repressor has...Ch. 18.4 - A viral protein that is needed to make HIV DNA is...Ch. 18.4 - Prob. 2COMQCh. 18.4 - After HIV components are made, what is the correct...Ch. 18 - 1. Discuss why viruses are considered nonliving.
Ch. 18 - What structural features are common to all...Ch. 18 - 3. What are the similarities and differences among...Ch. 18 - Prob. 4CONQCh. 18 - Prob. 5CONQCh. 18 - Prob. 6CONQCh. 18 - Prob. 7CONQCh. 18 - Prob. 8CONQCh. 18 - Prob. 9CONQCh. 18 - Prob. 10CONQCh. 18 - 11. What is a prophage, a provirus, and an...Ch. 18 - Prob. 12CONQCh. 18 - Prob. 13CONQCh. 18 - 14. With regard to promoting the lytic or...Ch. 18 - 15. How do therepressor and the cro protein affect...Ch. 18 - Prob. 16CONQCh. 18 - Figure 18.11 shows a genetic switch that controls...Ch. 18 - Prob. 18CONQCh. 18 - Prob. 19CONQCh. 18 - Explain the role of RNase H (a component of...Ch. 18 - Prob. 21CONQCh. 18 - Prob. 22CONQCh. 18 - Prob. 23CONQCh. 18 - 24. Compare and contrast the roles of fully...Ch. 18 - 25. Describe the role of the Gag polyprotein...Ch. 18 - Prob. 26CONQCh. 18 - Prob. 27CONQCh. 18 - 1. Discuss how researchers determined that TMV is...Ch. 18 - Prob. 2EQCh. 18 - What is a reconstituted virus?Ch. 18 - Following the infection of healthy tobacco leaves...Ch. 18 - Prob. 5EQCh. 18 - Prob. 6EQCh. 18 - A researcher identified a mutation in PR of phage ...Ch. 18 - Experimentally, when an E. coli bacterium already...Ch. 18 - 9. A bacterium is exposed to a drug that inhibits...Ch. 18 - This question combines your knowledge of bacterial...Ch. 18 - Prob. 1QSDCCh. 18 - 2. Certain environmental conditions such as...Ch. 18 - 3. Browse the Internet to determine the drugs that...
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- In what part of the host cell does a herpesvirus genome replicate? Where does the viral genome reside during a latent infection?arrow_forwardWhich structure of a virus protects it from degradation, contains its genome, and enables it to be transmitted outside the host? A) O capsule B) O capsid C) O envelope D) O nucleus E) O spikesarrow_forwardHow does the wavelength of light relate to its energy? What are the two main types of viral infections? How does the structure of DNA relate its function in storing genetic information?arrow_forward
- What are the different steps in the viral replication cycle?arrow_forwardDescribe why the attachment step in a viral reproductive cycle isusually specific for one or just a few cell types.arrow_forwardHow do cellular receptors for viruses come about? does host species that a particular virus infects evolve to have the viral receptors? would the above offer any survival and/or reproductive advantages to the host? how likely does the virus mutate so it would recognize (or fit) a particular exiting surface protein on the target cells of the host?arrow_forward
- we can stop the biosynthesis stage of the viral life cycle (not the stages before it) by preventing/inhibiting: A) fusion of the envelope and the plasma membrane B) replication and expression of viral nucleic acid/genome C) the virus's attachment molecules from binding to the host cell receptor D) new copies of viral nucleic acid from combining with newly made viral proteins E)buddingarrow_forwarda. Which type of viruses can be directly used for translation? a) dsRNA b) Positive ssRNA c) Retroviruses d) Negative ssRNA b. An antiviral drug specifically modifies viral receptors on a eukaryotic host cell. How might this affect the viral reproductive cycle? It would enhance the process of viral apoptosis It would result in the degeneration of the viral capsid It would facilitate the process of viral endocytosis It would prevent the virus from attaching to the host cellarrow_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