Question 1

Viroids are of economic significance because they cause disease in

Accepted Answer

A)  plants.
B)  animals.
C)  humans.
D)  all of the choicesE) A) and B)
F) A) and C)

Question 2

The mechanism of pathogenesis by prions may involve a conformational change in the prion protein (PrP)to an abnormal form.

Accepted Answer

A) True 
 B)False

Question 3

Viral capsid protein subunits are called

Accepted Answer

A)  auxomers.
B)  elastomers.
C)  protomers.
D)  viromers.E) A) and D)
F) B) and C)

Question 4

The simplest viruses consist of

Accepted Answer

A)  RNA only.
B)  Protein only.
C)  RNA or DNA in a protein coat.
D)  RNA or DNA in a protein coat covered with lipid envelope.
E)  RNA,DNA and enzymes in a protein coat with a lipid envelope.F) D) and E)
G) A) and B)

Question 5

Which of the following is not true of viruses?

Accepted Answer

A)  Viruses are acellular.
B)  Viruses consist of one or more molecules of DNA or RNA enclosed in a coat of protein and sometimes in other more complex layers.
C)  Viruses can exist in two phases: intracellular and extracellular.
D)  Viruses replicate by binary fission.E) C) and D)
F) A) and B)

Question 6

Microscopic or macroscopic degenerative changes or abnormalities in infected host cells and tissues are called __________ __________.

Accepted Answer

The answer of Microscopic or macroscopic degenerative changes or abnormalities...

Question 7

In which of the following stages of the viral infectious cycle do enveloped viruses usually acquire their envelopes?

Accepted Answer

A)  penetration
B)  component biosynthesis
C)  assembly
D)  releaseE) All of the above
F) B) and C)

Exam 6: Viruses and Other Acellular Infectious Agents

Viroids are of economic significance because they cause disease in

Correct Answer
verified

In which of the following stages of the viral infectious cycle do enveloped viruses usually acquire their envelopes?

Correct Answer
verified

Viral capsid protein subunits are called

Correct Answer
verified

The simplest viruses consist of

Correct Answer
verified

The mechanism of pathogenesis by prions may involve a conformational change in the prion protein (PrP)to an abnormal form.

Correct Answer
verified

Which of the following is not true of viruses?

Correct Answer
verified

Microscopic or macroscopic degenerative changes or abnormalities in infected host cells and tissues are called .

Correct Answer
verified

Exam 6: Viruses and Other Acellular Infectious Agents

Viroids are of economic significance because they cause disease in

Correct AnswerverifiedShow Answer

In which of the following stages of the viral infectious cycle do enveloped viruses usually acquire their envelopes?

Correct AnswerverifiedShow Answer

Viral capsid protein subunits are called

Correct AnswerverifiedShow Answer

The simplest viruses consist of

Correct AnswerverifiedShow Answer

The mechanism of pathogenesis by prions may involve a conformational change in the prion protein (PrP)to an abnormal form.

Correct AnswerverifiedShow Answer

Which of the following is not true of viruses?

Correct AnswerverifiedShow Answer

Microscopic or macroscopic degenerative changes or abnormalities in infected host cells and tissues are called __________ __________.

Correct AnswerverifiedShow Answer

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

Microscopic or macroscopic degenerative changes or abnormalities in infected host cells and tissues are called .

Correct Answer
verified