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Q 1/63
Score 0
Which of the following could NOT be used to grow viruses in the laboratory?
60
bacteria
plant
chicken egg
rock
Q 2/63
Score 0
Which of these is the best description of a virus?
60
organisms made of RNA or DNA protected by protein
a cell at the boundary between living and nonliving things
a noncellular living organism
a member of the kingdom Virusae
63 questions
Q.
Which of the following could NOT be used to grow viruses in the laboratory?
1
60 sec
Q.
Which of these is the best description of a virus?
2
60 sec
Q.
The innermost portion of a virus's structure is made up of
3
60 sec
Q.
If a virus is termed “dormant”, this means it
4
60 sec
Q.
Some, but not all, viruses contain ______, located on their outer or inner surface.
5
60 sec
Q.
In order to infect a cell, a virus must
6
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Q.
The viral infection cycle that will cause the viral DNA to become integrated into the bacterial DNA is called the _______ cycle.
7
60 sec
Q.
Which of the following is not true of viruses?
8
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Q.
Which of the following characterize prions?
9
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Q.
Letters “a”, “b”, “e”, “f”, and “g” represent
10
60 sec
Q.
Which part of the diagram is representing the assembly stage?
11
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Q.
The letter “d” represents a
12
60 sec
Q.
Which of the following are characteristics of a virus?
13
60 sec
Q.
What nucleic acid is found in viruses?
14
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Q.
What is a capsid?
15
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Q.
Sometimes, a virus becomes part of the host DNA and remains in the host cell for a long period of time. This process is called the ___________________.
16
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Q.
Which of the following is necessary for a virus to reproduce?
17
60 sec
Q.
Vaccines protect us against dangerous viral diseases by training the body to recognize and destroy specific invading viruses. Vaccines are made from
18
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Q.
A natural vaccination happens when
19
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Q.
Viruses are carried within the fluids and tissues of the body. They are spread between people in different ways, including
20
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Q.
The immune system protects the body from disease. Because the HIV/AIDS virus weakens the immune system,
21
60 sec
Q.
Viruses in the body are destroyed by
22
60 sec
Q.
Some types of viruses are spread between animals and humans. An example of this is
23
60 sec
Q.
In order to multiply, a virus must
24
60 sec
Q.
The use of antibiotics is an effective treatment for
25
60 sec
Q.
Overuse and improper use of antibiotics may cause
26
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Q.
Viruses are alive.
27
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Q.
Most viruses have the structural arrangement of
28
60 sec
Q.
Lysogenic viruses DO NOT
29
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Q.
Some virial infections symptoms can be decreased with vaccines.
30
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Q.
A lysogenic cycle involves
31
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Q.
__________ are small naked fragments of RNA that infect plant cells.
32
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Q.
Viruses have an overall structure that is
33
60 sec
Q.
Which of the following are not matched correctly:
34
60 sec
Q.
Retroviruses are viruses made of RNA.
35
60 sec
Q.
How do viruses gain entry to a host cell?
36
60 sec
Q.
Bacteriophage are:
37
60 sec
Q.
Letters A-G represent what viral infection?
38
60 sec
Q.
List the order of major events of the lytic cycle.
39
60 sec
Q.
The protein coat that surrounds the nucleic acid core of the virus is called a:
40
60 sec
Q.
Mad Cow disease, Kuru, Creutzfeldt-Jakob disease (CJD) and sheep scrapie are caused by
41
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Q.
Once in the lytic cycle a virus cannot change to the lysogenic cycle.
42
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Q.
What ways are viruses organized?
43
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Q.
A virus's outer protein coat is called a
44
60 sec
Q.
A lytic infection concludes with the
45
60 sec
Q.
Unlike lytic viruses, lysogenic viruses do not
46
60 sec
Q.
During a lytic infection, the host cell is
47
60 sec
Q.
Viruses cause infection by
48
60 sec
Q.
What letter represents the nucleic acid?
49
60 sec
Q.
What letter represents the capsid?
50
60 sec
Q.
A stimulus from the environment, such as a fever could cause a virus to change from the lysogenic to lytic cycle.
51
60 sec
Q.
Which of the following is not a prion disease?
52
60 sec
Q.
Viroids are composed of
53
60 sec
Q.
Viroids cause millions of dollars in damage to plants due to what reason?
54
60 sec
Q.
Viral genomes vary greatly in size and may include from four genes to several hundred genes. Which of the following things would these genes likely encode for?
55
60 sec
Q.
The host range of a virus is determined by
56
60 sec
Q.
Which of the following can be effective in preventing viral infection in humans?
57
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Q.
What are prions?
58
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Q.
Which of the following is the most probable fate of a newly emerging virus that causes high mortality in its host?
59
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Q.
Prions are:
60
60 sec
Q.
Which of the following mechanisms is not a method by which prions are
transmitted?
61
60 sec
Q.
Which of the following is NOT part of the typical viral structure?
62
60 sec
Q.
Place the following lysogenic replication events in order of occurrence: 1. incorporating viral DNA into host cell, 2. attachment, 3. release, 4. assembly, 5. synthesis
