Campbell Biology & New Mastering eText Value Pack Access Code
1st Edition
ISBN: 9780321989574
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 19, Problem 5TYU
Summary Introduction
Introduction: Viruses are infectious acellular microorganisms that have the key components such as
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If a virus particle contained double-stranded B-DNA of 500,000 base pairs,
A. How many complete helical turns would occur on each strand?
B. How many atoms of phosphorus would be present?
C. What would be the length (in Å) of the DNA before packing into the virus?
Explain the role receptor-mediated endocytosis (RME) plays in virus replication (lytic cycle). If you worked for a pharmaceutical company and wanted to develop a vaccine to prevent viral replication, how could you use your knowledge of RME to your advantage?
After a positive strand RNA virus ( Such as Coronaviruses) enters the host cell, the RNA is translated by ribosomes to create proteins associated with the virus (Such as, for example, the surface antigens like E and Spike proteins). How then, would the genetic material itself be replicated to be incorporated into the new viruses?.
Chapter 19 Solutions
Campbell Biology & New Mastering eText Value Pack Access Code
Ch. 19.1 - Prob. 1CCCh. 19.1 - MAKE CONNECTIONS Bacteriophages were used to...Ch. 19.2 - Compare the effect on the host cell of a lytic...Ch. 19.2 - Prob. 2CCCh. 19.2 - Why is HIV called a retrovirus?Ch. 19.2 - Prob. 4CCCh. 19.3 - Describe two ways in which a preexisting virus can...Ch. 19.3 - Contrast horizontal and vertical transmission of...Ch. 19.3 - WHAT IF? TMV has been isolated from virtually all...Ch. 19 - Are viruses generally considered living or...
Ch. 19 - Prob. 19.2CRCh. 19 - Prob. 19.3CRCh. 19 - Which of the following characteristics,...Ch. 19 - Emerging viruses arise by (A) mutation of existing...Ch. 19 - Prob. 3TYUCh. 19 - Prob. 4TYUCh. 19 - Prob. 5TYUCh. 19 - Prob. 6TYUCh. 19 - EVOLUTION CONNECTION The successof some viruses...Ch. 19 - SCIENTIFIC INQUIRY When bacteria infect an animal,...Ch. 19 - WRITE ABOUT A THEME: ORGANIZATION While viruses...Ch. 19 - Prob. 10TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What is the basic structure of the HIV virus? What is the function of the glycoproteins of its envelope?arrow_forwardA virus does not contain ribosomes. How does it manage to ensure the synthesis of its proteins?arrow_forwardBased on your knowledge of the COVID-19 genome (from question 6), what step(s) in the flow of biological information (DNA to RNA to Protein) are required for an infected human cell to produce a viral protein? Does the virus need access to the nucleus for this to happen?arrow_forward
- Compared with cells, what is unusual about viral genomes?arrow_forwardWhy must viruses repeat the same capsid protein subunits over and over again, rather than having hundreds of different capsid proteins?arrow_forwarda. If viruses that normally form envelopes were prevented frombudding, would they still be infectious? Why or why not?b. If only the RNA of an influenza virus were injected into a cell byitself, could it cause a lytic infection?arrow_forward
- If a virus has a negative-sense RNA genome, what enzymatic activity (if any) will be found as part of the virion, and what will be the first step in expression of the viral genome?arrow_forwardIf a virus particle contained double-stranded B-DNA of 500,000 base pairs, what would be the radius of the DNA fiber before packing into the virus?arrow_forwardFigure 17.6 Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane. This way, the virus can exit the host cell without killing it. What advantage does the virus gain by keeping the host cell alive?arrow_forward
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