Question 1

Two noncellular agents, smaller than viruses, are the infectious proteins called _____, and the infectious RNA strands called _____.

Accepted Answer

The answer of Two noncellular agents, smaller than viruses, are...

Question 2

Which of the following parts of a virus is not always present?

Accepted Answer

A)  envelope
B)  nucleic acid
C)  capsid
D)  capsomers
E)  None of the choices are optional parts of a virus.F) A) and B)
G) A) and C)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

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

Question 5

All of the following is 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 the choices are correct.F) C) and D)
G) B) and E)

Question 6

A(n) _____ is the protein shell around the nucleic acid core of a virus.

Accepted Answer

The answer of A(n) _____ is the protein shell around...

Question 7

Compare and contrast viruses, prions, and viroids.

Accepted Answer

Viruses, prions, and viroids are all inf...

Question 8

Viruses have all the following except

Accepted Answer

A)  definite shape.
B)  metabolism.
C)  genes.
D)  ability to infect host cells.
E)  ultramicroscopic size.F) A) and D)
G) B) and D)

Question 9

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 cytoplasm
D)  cells round up
E)  All of the choices are correct.F) C) and D)
G) None of the above

Question 10

Which body system is mainly affected by Creutzfeldt-Jakob disease?

Accepted Answer

A)  digestive
B)  genitourinary
C)  nervous
D)  circulatory
E)  respiratoryF) None of the above
G) C) and E)

Question 11

Viruses that infect bacteria are specifically called _____.

Accepted Answer

The answer of Viruses that infect bacteria are specifically called...

Question 12

Visible, clear, well-defined patches in a monolayer of virus-infected cells in a culture are called

Accepted Answer

A)  lysogeny.
B)  budding.
C)  plaques.
D)  cytopathic effects.
E)  pocks.F) C) and D)
G) A) and E)

Question 13

Uncoating of viral nucleic acid

Accepted Answer

A)  does not occur in bacteriophage multiplication.
B)  involves enzymatic destruction of the capsid.
C)  occurs during penetration in the multiplication cycle.
D)  occurs before replication.
E)  All of the choices are correct.F) A) and B)
G) C) and D)

Question 14

The correct sequence of events in viral multiplication is

Accepted Answer

A)  penetration, replication, maturation, adsorption, assembly, release.
B)  replication, penetration, maturation, assembly, absorption, release.
C)  adsorption, penetration, replication, maturation, assembly, release.
D)  assembly, maturation, replication, release, penetration, adsorption.
E)  adsorption, release, maturation, replication, assembly, penetration.F) None of the above
G) C) and D)

Question 15

In general, most DNA viruses multiply in the host cell's _____, while most RNA viruses multiply in the host cell's _____.

Accepted Answer

A)  nucleus, cytoplasm
B)  cytoplasm, cell membrane
C)  cell membrane, cytoplasm
D)  cytoplasm, nucleus
E)  nucleus, endoplasmic reticulumF) A) and B)
G) A) and D)

Question 16

During lysogeny, an inactive prophage state occurs when the viral DNA is inserted into the _____ _____.

Accepted Answer

bacterial ...

Question 17

The International Committee on Taxonomy of Viruses has determined that there are only three orders of viruses.

Accepted Answer

A) True 
 B)False  True

Question 18

All of the following are characteristics of viruses except

Accepted Answer

A)  they can be crystallized.
B)  they often have a geometric capsid.
C)  they have a viscous fluid inside their capsids.
D)  they can cause fatal diseases.
E)  they can cause mild diseases.F) B) and E)
G) None of the above C

Question 19

Host range is limited by

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 the choices are correct.F) A) and C)
G) A) and B)

Question 20

The capsomers are made of

Accepted Answer

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

Exam 6: An Introduction to Viruses

Two noncellular agents, smaller than viruses, are the infectious proteins called _____, and the infectious RNA strands called _____.

Correct AnswerverifiedShow Answer

Which of the following parts of a virus is not always present?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

All of the following is correct about treating viral diseases except

Correct AnswerverifiedShow Answer

A(n) _____ is the protein shell around the nucleic acid core of a virus.

Correct AnswerverifiedShow Answer

Compare and contrast viruses, prions, and viroids.

Correct AnswerAnswered by ExamLex AIViruses, prions, and viroids are all inf...View AnswerShow Answer

Viruses have all the following except

Correct AnswerverifiedShow Answer

Which of the following is a type of cytopathic effect?

Correct AnswerverifiedShow Answer

Which body system is mainly affected by Creutzfeldt-Jakob disease?

Correct AnswerverifiedShow Answer

Viruses that infect bacteria are specifically called _____.

Correct AnswerverifiedShow Answer

Visible, clear, well-defined patches in a monolayer of virus-infected cells in a culture are called

Correct AnswerverifiedShow Answer

Uncoating of viral nucleic acid

Correct AnswerverifiedShow Answer

The correct sequence of events in viral multiplication is

Correct AnswerverifiedShow Answer

In general, most DNA viruses multiply in the host cell's _____, while most RNA viruses multiply in the host cell's _____.

Correct AnswerverifiedShow Answer

During lysogeny, an inactive prophage state occurs when the viral DNA is inserted into the _____ _____.

Correct Answerverifiedbacterial ...View AnswerShow Answer

The International Committee on Taxonomy of Viruses has determined that there are only three orders of viruses.

Correct AnswerverifiedTrue

All of the following are characteristics of viruses except

Correct AnswerverifiedC

Host range is limited by

Correct AnswerverifiedShow Answer

The capsomers are made of

Correct AnswerverifiedD

Two noncellular agents, smaller than viruses, are the infectious proteins called _, and the infectious RNA strands called _.

Correct Answer
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Answered by ExamLex AI
Viruses, prions, and viroids are all inf...
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In general, most DNA viruses multiply in the host cell's _, while most RNA viruses multiply in the host cell's _.

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During lysogeny, an inactive prophage state occurs when the viral DNA is inserted into the _ _.

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bacterial ...
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True

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C

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D