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Viruses Post-Test Part 2 Of 2
Test Description: Spring Final 2016
Instructions: Answer all questions to get your test result.
1) Which of the following occurs in cells but not in viruses?
A
neither A or B
B
DNA replication
C
protein synthesis
D
both A and B
2) Which of the following cannot be found in a virus?
A
RNA
B
nucleus
C
DNA
D
proteins
3) Which of the following gives the best explanation as to why host cells die rapidly during a lytic infection?
A
viruses involved in lytic infections tend to mutate more quickly
B
the virus incorporates its genes into the DNA of the host cell
C
lytic infections often attack cells of the immune system
D
the host cell fills with new virus and bursts open
4) Viruses have which of the following components?
A
genes
B
nucleus
C
ribosome
D
cell wall
5) Viruses do not have ribosomes, therefore they cannot make ______ on their own.
A
ATP
B
glucose
C
proteins
D
ADP
6) Why do viruses go dormant if they are outside of a host for a length of time?
A
they cannot replicate without the organelles in a host cell
B
without the ATP provided by the host cell, viruses do not have any energy
C
the protein coating shrivels when it cannot find any other viruses nearby
D
hey become dried out when not in contact with body fluids
7) Which of the following best describes the evolutionary advantage of dormant states in viruses?
A
viruses can survive while waiting to come in contact with other viruses
B
viruses can survive while waiting to come in contact with a host to infect
C
viruses can go through several mutations while in a dormant state
D
viruses can survive periods of dormancy by creating their own DNA
8) Which of the following best describes the contents of a flu vaccine?
A
bacteria that distract the flu virus from attacking the host's cells
B
a virus that attacks the flu virus
C
medicine that activates if the flu virus becomes present in a host
D
deactivated particles of the flu virus
9) Why do viral mutations pose such a threat to human health?
A
When something mutates it always gains characteristics that make it stronger.
B
Viruses mutate faster than the human immune system can build antibodies.
C
Viral mutants can survive longer periods of dormancy.
D
When something mutates it always gains characteristics that make it stronger.
10) Charles Chamberland, a French microbiologist, invented a filter in 1884 that allowed for the separation of bacteria from viruses. His invention was a turning point in the study of viruses. What property of viruses allowed Chamberland’s filter to wo
A
Viruses can cause disease in both plants and animals.
B
Viruses are much smaller than bacteria.
C
Viruses, unlike bacteria, are not alive.
D
Viruses reproduce in a much different way than bacteria reproduce.
*select an answer for all questions
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