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BOARDS VIRUSES > DNA viruses > Flashcards

DNA viruses Flashcards

1
Q

what is the ONLY single stranded DNA virus?

A

parvovirus (B19)

** think parvovirus is “part of a dna virus”

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2
Q 
what are the attributes of parvovirus:
DNA or RNA?
ss or ds?
circular or linear?
shape of capsid?
enveloped or naked?
A 
DNA or RNA: DNA
ss or ds: ss
circular or linear: linear (all DNA viruses are linear except polyoma (JC), Papilloma (HPV) and Hepadnavirus (HBV))
shape of capsid: icosahedral
enveloped or naked: naked
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3
Q

what are the only 3 DNA viruses that are circular (as opposed to linear) and their associated diseases?

A 
Hepadnavirus- (HBV)
Polyoma virus (JC-- think AIDS pt)
Papilloma virus (HPV)
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4
Q

what are the six viruses that are under the Herpes Virus Heading?

A
  1. HSV
  2. Varicella-Zoster
  3. EBV
  4. CMV (sytomegalovirus)
  5. Herpes virus 6
  6. Herpes virus 8
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5
Q

what are the attributes of 6 Herpes viruses (HSV, Varicella-Zoster, EBV, CMV, Herpes virus 6, Herpes virus 8)

DNA or RNA?
ss or ds?
circular or linear?
shape of capsid?
enveloped or naked?
A

DNA or RNA: DNA

ss or ds: ds (all DNA is ds except parvovirus!!)

circular or linear: linear (all DNA viruses are linear except polyoma (JC), Papilloma (HPV) and Hepadnavirus (HBV))

shape of capsid: icosahedral

enveloped or naked: enveloped

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6
Q

what are the 4 viruses listed as Poxviruses?

A
  1. variola
  2. vaccinia
  3. Molluscum
  4. Contagiosum
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7
Q

What are the attributes associated with the 4 pox viruses (variola, vaccinia, molluscum, contagiosum)?

DNA or RNA?
ss or ds?
circular or linear? 
shape of capsid?
enveloped or naked?
A

DNA or RNA: DNA
ss or ds: ds (all DNA viruses are ds EXCEPT parvovirus)
circular or linear: linear (all DNA viruses are linear except polyoma (JC), Papilloma (HPV) and Hepadnavirus (HBV))
shape of capsid: complex
enveloped or naked: enveloped

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8
Q

what are the attributes of Hepadnavirus (HBV)?

DNA or RNA?
ss or ds?
circular or linear? 
shape of capsid?
enveloped or naked?
A

DNA or RNA: DNA

ss or ds: ds (all DNA viruses are ds EXCEPT parvovirus B19)

circular or linear: circular (Hepadnavirus is one of 3 viruses that is circular, along wih Polyoma (JC) and papilloma (HPV))

shape of capsid: icosahedral

enveloped or naked: enveloped

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9
Q

what are the 2 dsDNA, circular, naked, icosahedral virus groups?

A

papillomavirus (HPV)

Polyomavirus (JC)

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10
Q

what is the circular, dsDNA icosahedral, enveloped virus?

A

Hepadnavirus (HBV)

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11
Q

what is the group of linear, dsDNA, icosahedral, enveloped viruses?

A

Herpesvirus (HSV, EBV, Herpes 6, Herpes 8, CMV, Varicella-zoster virus)

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12
Q

what is the group of complex, enveloped, dsDNA viruses?

A

Poxvirus (Variola, Vaccinia, Molluscum, Contagiosum)

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13
Q

what is the linear, dsDNA, naked, icosahedral virus group?

A

adenoviruses

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14
Q

what is the naked, icosahedral, ssDNA virus?

A

parvovirus! (the only ssDNA virus!!)

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15
Q

what are the attributes of Papillomavirus (HPV) and Polyomavirus (JC)

DNA or RNA?
ss or ds?
circular or linear? 
shape of capsid?
enveloped or naked?
A 
DNA or RNA: DNA
ss or ds: ds
circular or linear: circular (there are only 3 virus families that are circular, popilloma, polyoma and hepadnavirus)
shape of capsid: icosahedral
enveloped or naked: naked
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16
Q

what are the 4 naked DNA virus groups?

A
  1. papillomavirus
  2. polyomavirus
  3. adenovirus
  4. parvovirus (the only 22DNA virus)
17
Q

what are the attributes of adenovirus?

DNA or RNA?
ss or ds?
circular or linear? 
shape of capsid?
enveloped or naked?
A

DNA or RNA: DNA
ss or ds: ds (all are ds except parvovirus)
circular or linear: linear (all are linear except papilloma, polyoma and hepadnovirus)
shape of capsid: icosahedral
enveloped or naked: naked

18
Q

Which DNA viruses would be infectous without their capsid? (naked viral genome infectivity)

A

ALL dsDNA viruses EXCEPT FOR POXVIRUS!!

NOTE: all DNA viruses are ds except parvovirus

19
Q

Are DNA viruses diploid or haploid?

A

ALL ARE HAPLOID!!

20
Q

ALL DNA viruses replicate in the _______ except Poxvirus, which replicates in the ______

A

ALL DNA viruses replicate in the NUCLEUS (they need the host cells machinery) except Poxvirus, which replicates in the CYTOPLASM

21
Q

where does the Poxvirus replicate?

A

in the cytoplasm

22
Q

what is the only DNA virus that doesn’t replicate in the nucleus? Where does it replicate?

A

the Poxvirus replicated in the cytoplasm

23
Q

What are the naked DNA viruses (4)?

A

Papilloma
Adenovirus
Polyomavirus
Parvovirus

Think, the NAKED RNA and DNA viruses are “CPR and PAPPsHmear (with CPR and H being RNA viruses, Calicivirus, Picornavirus, Reovirus and Hepevirus)

24
Q

What are all of the DNA virus groups? (7)

A

HHAPPPPy Viruses!

  1. Hepadnavirus
  2. Herpesvirus
  3. Adenovirus
  4. Poxvirus
  5. Papillomavirus
  6. Polyomavirus
  7. Poxvirus
  8. Parvovirus
25
Q

the only DNA virus that is not icosahedral is

A

poxvirus

26
Q

All DNA viruses have a capsid that is ______ except the poxvirus

A

Icosahedral

BOARDS VIRUSES (4 decks)

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