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MB C10 Quiz

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walanoga's version from 2016-10-26 04:25

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Question Answer
1. Viruses have some of the properties of living organisms. Which of the following is a characteristic of all organisms but not of virusespresence of plasma membrane
2. Viruses are referred to as obligate parasites becausethey use the host cell's nucleotides and enzymes to reproduce.
3. Some viruses have a lipid bilayer, also known as the viral envelope. The viral envelope most likely comes from the following sourcehost cell plasma membrane
4. The advantage of the viral envelope includeshelps viruses infect new cells by fusion of the envelope with the host's plasma membrane.
5. A virus's RNA can be directly used to synthesize proteins by host cell after infection is a process shown belowRNA protein
6. The families of RNA viruses are distinguished from one another by all of the following exceptwhether RNA is linear or circular
7. Viruses that have a single strand of RNA that acts as a template for DNA synthesis are known asretroviruses.
8. All of the following viruses may stay inside of a cell for many years and remain inactive exceptenterovirus
9. Acquired Immune Deficiency Syndrome (AIDS) is caused by a retrovirus. Which of the following best represents the genetic information flow used by retrovirusesRNA-DNA- mRNA-protein
10. A viral infection is ineffective by the treatment of anti-RNA drug. The most likely reason is that this virus is apoxvirus
11. Which of the following is not caused by a poxviruschickenpox
12. Severe acute respiratory syndrome (SARS) is a viral respiratory illness that was first reported in Asia in 2003. Which of the following viruses was identified as the cause for SARS in humansCoronaviruses
13. The virus that causes human severe acute respiratory syndrome (SARS) infects all of the following exceptsnakes
14. Which of the following is a FALSE statement about yellow feverendemic to the United States
15. Assembly of new viral components into a complete virion takes place during viralmaturation
16. Bacteriophages contain the enzyme lysozyme, which is used toweaken bacterial cell walls.
17. Because viruses such as bacteriophages lead to bursting of the bacterial host cell they are known as ________ viruseslytic
18. Temperate phagesdo not always undergo a lytic cycle
19. Prophages are responsible for production of the toxins found inClostridium botulinum
20. A lysogenous phage which enters a lytic cycle is said to have undergoneinduction
21. All of the following reasons explain why eggs are often used to grow animal viruses excepteggs are easy to store
22. Enveloped animal viruses typically leave the host cell bybudding
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