Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 6.2, Problem 1TQ
Summary Introduction
To review :
The virus particle that remains intact within a host cell and fails to release its genome.
Introduction:
A virus is a disease-causing agent in many plants, animals, and other microscopic organisms. However, it cannot cause a disease unless it finds a host cell. The virus that is present extracellularly is not infectious. In this condition, a virus is called a virion that contains the viral genome enclosed in a layer called the capsid.
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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)budding
Which of the following viral components must get into a cell's cytoplasm in order for the virus to be replicated?
A) Protein spikes
B) The virus envelope
C) The virus genome
D) The virus capsid
Why does a virus need a host cell?
Chapter 6 Solutions
Microbiology: An Evolving Science (Fourth Edition)
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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 would happen to a virus that found its way to an environment filled only with cells that were outside of its host range? a) This virus would evolve until it was able to use the surrounding cells as hosts b) This virus would actively transport itself to another area in search of host cells C) This virus would replicate until it found cells that were within its host range d) Nothing; this virus would not be replicatedarrow_forwarda "persistent infection" is best described as: A) chronic infection in which viral genes are not expressed and viral proteins are NOT made B) an infection in which the viral nucleic acid does NOT persist/stay in the host cell C) A general term that describes all chronic/long-term infections D) chronic infection in which viral proteins are constantly made E) chronic infections that usually do NOT have a fatal outcomearrow_forwardWhich statement is true of viral replication? A) virus attaches to a specific receptor site on the host-cell membrane. B) Once inside the cell, the viral capsid is degraded, and the viral nucleic acid is released. C) Virus uses the host cell’s machinery to replicate and new virus particles are released. D) All of the abovearrow_forward
- Which 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_forwardWhat is the anatomy of a virus?arrow_forwardWhat are the four properties that define a virus? What is a virion?arrow_forward
- Answer the following regarding the varicella-zoster virus: a) the biology of the virus ( type: DNA/RNA type: single or double stranded) b) how it replicates c) life cycle of the virus (binding, fusion, reverse transcription, integration, replication, and assembly)arrow_forwardWhich of the following highly contagious viruses is a single-stranded ribonucleic acid (RNA) virus with a helical capsid and envelope and is transmitted by coming in contact with respiratory secretions? "This is a highly contagious respiratory illness transmitted when an infected person coughs or sneezes virus particles into the air," the health department said in a written statement. "It's so contagious that if one person is sick and spreading measles, nine out of 10 people around them who aren't immune will get it, too." Group of answer choices a. Measles b. Parvovirus c. Coxsackie virus A d. Rhinovirusarrow_forwardWhat is crystallization of a virus? What is the importance of this process?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