Question 1

Viral infections are easier to treat with drugs than bacterial infections.

Accepted Answer

A) True 
 B)False

Question 2

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

Accepted Answer

The answer of Freshly isolated animal tissue that is placed...

Question 3

Discuss why it is difficult to trace the origins of viruses and why they are important.

Accepted Answer

Tracing the origins of viruses can be di...

Question 4

The event that occurs in bacteriophage multiplication that does not occur in animal virus replication is

Accepted Answer

A)   adsorption to the host cells.
B)   injection of the viral nucleic acid into the host cell.
C)   host cell synthesis of viral enzymes and capsid proteins.
D)   assembly of nucleocapsids.
E)   replication of viral nucleic acid.F) B) and D)
G) A) and B)

Question 5

A naked virus does not have an) _____.

Accepted Answer

The answer of A naked virus does not have an)...

Question 6

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

Accepted Answer

The steps of viral multiplication cycles...

Question 7

One of the principal capsid shapes is a 20-sided figure with 12 evenly spaced corners referred to as an) _____
capsid.

Accepted Answer

The answer of One of the principal capsid shapes is...

Question 8

Classification of viruses into families involves determining all the following characteristics except

Accepted Answer

A)   type of nucleic acid.
B)   type of capsid.
C)   presence of an envelope.
D)   biochemical reactions.
E)   nucleic acid strand number.F) None of the above
G) A) and E)

Question 9

Bacteriophages do not undergo adsorption to specific host cell receptors prior to penetration.

Accepted Answer

A) True 
 B)False

Question 10

All of the following are correct about treating viral diseases except

Accepted Answer

A)   viruses are killed by the same antibiotics that kill bacteria.
B)   many antiviral drugs block viral replication.
C)   many antiviral drugs cause severe side effects.
D)   interferons show potential for treating and preventing viral infections.
E)   All of these choices are correct.F) None of the above
G) C) and E)

Question 11

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Accepted Answer

A) True 
 B)False

Question 12

An) _____ is the protein shell around the nucleic acid core of a virus.

Accepted Answer

The answer of An) _____ is the protein shell around...

Question 13

Select the FALSE statement about viruses.

Accepted Answer

A)   Cellular life-forms most likely preceded the origin of viruses since viruses need host cells in which to develop and reproduce.
B)   Viruses are the most numerous microbes on Earth.
C)   Viruses have impacted the evolution of all other cellular life-forms including bacteria, achaeans, and eukaryotes.
D)   When viruses are treated in a way that prevents them from entering host cells and reproducing, they are said to be dead.E) B) and C)
F) A) and B)

Question 14

Which of the following is a type of cytopathic effect?

Accepted Answer

A)   inclusions in the nucleus
B)   multinucleated giant cells
C)   inclusions in the cytopl
D)   rounding of cells
E)   All of these choices are correct.F) B) and E)
G) C) and E)

Question 15

Clostridium botulinum is made virulent by incorporated prophage genes encoding the botulinum toxin. What term describes this process?

Accepted Answer

A)   lytic phase
B)   budding
C)   adsorption
D)   lysogenic conversion
E)   latent phaseF) C) and D)
G) D) and E)

Question 16

Host range is limited by the

Accepted Answer

A)   type of nucleic acid in the virus.
B)   age of the host cell.
C)   type of host cell receptors on cell membrane.
D)   size of the host cell.
E)   All of these choices are correct.F) A) and B)
G) C) and D)

Question 17

Which of these structures are used by bacteriophages to attach to host cell receptors?

Accepted Answer

A)   sheath
B)   tail fibers
C)   nucleic acid
D)   capsid headE) A) and D)
F) None of the above

Question 18

The capsomers are made of

Accepted Answer

A)   DNA.
B)   RNA.
C)   lipids.
D)   protein.
E)   carbohydrate.F) B) and C)
G) A) and E)

Exam 6: An Introduction to Viruses

An) _____ is the protein shell around the nucleic acid core of a virus.

Correct Answer
verified

Bacteriophages do not undergo adsorption to specific host cell receptors prior to penetration.

Correct Answer
verified

All of the following are correct about treating viral diseases except

Correct Answer
verified

Clostridium botulinum is made virulent by incorporated prophage genes encoding the botulinum toxin. What term describes this process?

Correct Answer
verified

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Correct Answer
verified

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

Correct Answer
verified

The event that occurs in bacteriophage multiplication that does not occur in animal virus replication is

Correct Answer
verified

Classification of viruses into families involves determining all the following characteristics except

Correct Answer
verified

A naked virus does not have an) _____.

Correct Answer
verified

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

Correct Answer
Answered by ExamLex AI
The steps of viral multiplication cycles...
View Answer

Which of these structures are used by bacteriophages to attach to host cell receptors?

Correct Answer
verified

Select the FALSE statement about viruses.

Correct Answer
verified

The capsomers are made of

Correct Answer
verified

One of the principal capsid shapes is a 20-sided figure with 12 evenly spaced corners referred to as an) _____ capsid.

Correct Answer
verified

Discuss why it is difficult to trace the origins of viruses and why they are important.

Correct Answer
Answered by ExamLex AI
Tracing the origins of viruses can be di...
View Answer

Which of the following is a type of cytopathic effect?

Correct Answer
verified

Viral infections are easier to treat with drugs than bacterial infections.

Correct Answer
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Host range is limited by the

Correct Answer
verified

Exam 6: An Introduction to Viruses

An) _____ is the protein shell around the nucleic acid core of a virus.

Correct AnswerverifiedShow Answer

Bacteriophages do not undergo adsorption to specific host cell receptors prior to penetration.

Correct AnswerverifiedShow Answer

All of the following are correct about treating viral diseases except

Correct AnswerverifiedShow Answer

Clostridium botulinum is made virulent by incorporated prophage genes encoding the botulinum toxin. What term describes this process?

Correct AnswerverifiedShow Answer

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Correct AnswerverifiedShow Answer

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

Correct AnswerverifiedShow Answer

The event that occurs in bacteriophage multiplication that does not occur in animal virus replication is

Correct AnswerverifiedShow Answer

Classification of viruses into families involves determining all the following characteristics except

Correct AnswerverifiedShow Answer

A naked virus does not have an) _____.

Correct AnswerverifiedShow Answer

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

Correct AnswerAnswered by ExamLex AIThe steps of viral multiplication cycles...View AnswerShow Answer

Which of these structures are used by bacteriophages to attach to host cell receptors?

Correct AnswerverifiedShow Answer

Select the FALSE statement about viruses.

Correct AnswerverifiedShow Answer

The capsomers are made of

Correct AnswerverifiedShow Answer

One of the principal capsid shapes is a 20-sided figure with 12 evenly spaced corners referred to as an) _____ capsid.

Correct AnswerverifiedShow Answer

Discuss why it is difficult to trace the origins of viruses and why they are important.

Correct AnswerAnswered by ExamLex AITracing the origins of viruses can be di...View AnswerShow Answer

Which of the following is a type of cytopathic effect?

Correct AnswerverifiedShow Answer

Viral infections are easier to treat with drugs than bacterial infections.

Correct AnswerverifiedShow Answer

Host range is limited by the

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The steps of viral multiplication cycles...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Tracing the origins of viruses can be di...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified