Question 1

Which of the following represents the correct order of steps in a typical virus replication cycle

Accepted Answer

A)  maturation --> adsorption --> penetration --> release --> synthesis
B)  adsorption --> penetration --> release --> maturation --> synthesis
C)  adsorption --> penetration --> synthesis --> maturation --> release
D)  adsorption --> penetration --> maturation --> synthesis --> release

Question 2

All of the following viruses may stay inside of a cell for many years and remain inactive except:

Accepted Answer

A)  herpes simplex
B)  chickenpox
C)  HIV
D)  enterovirus

Question 3

Which of the following viruses plays an important role in the development of cervical cancer

Accepted Answer

A)  adenoviruses
B)  herpes viruses
C)  human papilloma viruses
D)  slow viruses

Question 4

Common colds and influenza are caused by which of the following pair of virus families

Accepted Answer

A)  Adenoviridae & Orthomyxoviridae
B)  Enterovirus & Retrovirus
C)  Flavivirus & Rhinovirus
D)  Poxvirus & Papillomavirus

Question 5

A lysogenic phage which enters a lytic cycle is said to have undergone:

Accepted Answer

A)  transformation
B)  induction
C)  transcription
D)  lysogenic conversion

Question 6

Bacteriophages contain the enzyme lysozyme,which is used to:

Accepted Answer

A)  replicate viral DNA.
B)  shut down bacterial cell metabolism.
C)  weaken bacterial cell walls.
D)  help recognize the proper bacterial host.

Question 7

DNA viruses are grouped into families based on all the following characteristics EXCEPT:

Accepted Answer

A)  presence of an envelope
B)  presence of a capsid
C)  whether DNA or RNA is chromosome
D)  whether chromosome is single or double stranded

Question 8

The most conclusive evidence that viruses cause cancers is provided by:

Accepted Answer

A)  the presence of oncogenes in humans
B)  the presence of antibodies against viruses in cancer patients
C)  treating cancer patients with antibiotics
D)  development of a cancer following an injection of viruses

Question 9

A viroid has all of the following characteristics EXCEPT:

Accepted Answer

A)  single circular RNA chromosome
B)  need for a helper virus in replication
C)  lack of protein in its structure
D)  lack of DNA in its structure

Question 10

A minus (antisense) strand virus might synthesize proteins within a host cell through the following synthesis pathway:

Accepted Answer

A)  minus strand RNA --> protein
B)  minus strand RNA --> plus strand RNA --> protein
C)  RNA --> DNA --> protein
D)  RNA --> RNA --> DNA --> protein

Question 11

What type of effect is occurring with these cells infected by RSV

Accepted Answer

A)  Cytopathic effect
B)  CPE
C)  Nuclear effect
D)  Cytoplasmic effect
E)  Both Cytopathic effect and CPE are correct

Exam 11: Viruses

DNA viruses are grouped into families based on all the following characteristics EXCEPT:

Correct Answer
verified

All of the following viruses may stay inside of a cell for many years and remain inactive except:

Correct Answer
verified

Which of the following represents the correct order of steps in a typical virus replication cycle

Correct Answer
verified

A minus (antisense) strand virus might synthesize proteins within a host cell through the following synthesis pathway:

Correct Answer
verified

Common colds and influenza are caused by which of the following pair of virus families

Correct Answer
verified

Bacteriophages contain the enzyme lysozyme,which is used to:

Correct Answer
verified

A lysogenic phage which enters a lytic cycle is said to have undergone:

Correct Answer
verified

Which of the following viruses plays an important role in the development of cervical cancer

Correct Answer
verified

What type of effect is occurring with these cells infected by RSV

Correct Answer
verified

The most conclusive evidence that viruses cause cancers is provided by:

Correct Answer
verified

A viroid has all of the following characteristics EXCEPT:

Correct Answer
verified

Exam 11: Viruses

DNA viruses are grouped into families based on all the following characteristics EXCEPT:

Correct AnswerverifiedShow Answer

All of the following viruses may stay inside of a cell for many years and remain inactive except:

Correct AnswerverifiedShow Answer

Which of the following represents the correct order of steps in a typical virus replication cycle

Correct AnswerverifiedShow Answer

A minus (antisense) strand virus might synthesize proteins within a host cell through the following synthesis pathway:

Correct AnswerverifiedShow Answer

Common colds and influenza are caused by which of the following pair of virus families

Correct AnswerverifiedShow Answer

Bacteriophages contain the enzyme lysozyme,which is used to:

Correct AnswerverifiedShow Answer

A lysogenic phage which enters a lytic cycle is said to have undergone:

Correct AnswerverifiedShow Answer

Which of the following viruses plays an important role in the development of cervical cancer

Correct AnswerverifiedShow Answer

What type of effect is occurring with these cells infected by RSV

Correct AnswerverifiedShow Answer

The most conclusive evidence that viruses cause cancers is provided by:

Correct AnswerverifiedShow Answer

A viroid has all of the following characteristics EXCEPT:

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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