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Monica's TCC Tri 3 Cards > Micro - POSITIVE Single Stranded RNA > Flashcards

Micro - POSITIVE Single Stranded RNA Flashcards

1
Q

What is the smallest of all RNA viruses?

A

Picornavirus

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2
Q

Is Picornavirus group double or single stranded?

A

Single

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3
Q

Is Piconavirus positive or negative?

A

Positive

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4
Q

What is the shape of Picornavirus group capsid?

A

Icosahedral

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5
Q

Does Picornavirus group have an envelope?

A

NO

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6
Q

Is Picornavirus replicated in the nucleus or cytoplasm?

A

Cytoplasm

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7
Q

Does Picornavirs use RDRP?

A

YES

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8
Q

Does Picornavirus group carry their RDRP?

A

NO

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9
Q

What are the two subcategories of Picornavirus?

A
  • Rhinoviruses (nose - respiratory)
  • Enteroviruses (intestine)
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10
Q

Which subcatagory virus of Picornavirus prefers cooler temp, can’t tolerate acid pH, is common cold virus and has over 150 serological types?

A

Rhinovirus

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11
Q

What subcatagory virus of Picornavirus prefers hotter temp and can tolerate acid pH?

A

Enterovirus

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12
Q

What are the major examples of Enterovirus?

A
  • Hepatitis A virus
  • Polio virus
  • Coxsackie A virus
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13
Q

What specific virus of Enterovirus group is a causative agent of hepatitis A, spread fecal/oral and are common in day care and resaurants

A

Hepatitis A virus (Enterovirus 72)

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14
Q

What specific virus of Enterovirus group is a causative agent of polio, spread fecal/oral and replicates in nerve cells?

A

Polio virus

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15
Q

What are the two vaccines to the specific virsu Polio virus?

A
  • Salk - Inactive
  • Sabine - Active
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16
Q

Which specific virus of Enterovirus group has symptoms of fever, sore throat, rash that progress to blisters mainly on the hands, foot and mount?

A

Coxsackie A Virus (A16)

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17
Q

What is unique about Picornavirus group?

A

Smallest of RNA viruses

PICO = SMALL

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18
Q

Is Togavirus group positive or negative?

A

Positive

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19
Q

Is Togavirus group double or single stranded RNA?

A

Single

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20
Q

What is the shape of the Togavirus group capsid?

A

Icosahedral

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21
Q

Does the Togavirus group have a capsid?

A

YES - from the plasma membrane

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22
Q

Do the Togavirus group replicate in the nucleus or cytoplasm?

A

Cytoplasm

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23
Q

Does Togavirus group use RDRP?

A

YES

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24
Q

Does Togavirus group carry their RDRP?

A

NO

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25
Q

What are the two subcatagories of Togavirus group?

A
  • Alphavirus
  • Flavivirus
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26
Q

What are the specific viruses that fall under Flavivirus group?

A
  • Hepatitis C virus
  • Arthropod borne flaviviruses
27
Q

What is the specific virus of the Flavivirus group that is a causative agent of hepatitis C, spread via STD or blood/blood products and implicated in chronic liver ds.?

A

Hepatitis C virus

28
Q

Arthropod Borne Falviviruses

29
Q

Arthorpod borne Alphaviruses

30
Q

What specific virus of Togavirus group is known as “german measles, part of TORCH and is only harmful to a fetus?

A

Rubella virus

31
Q

What persistent slow viral infection do you see with Rubella?

A

Progressive Rubella Panencephalitis

with this you see Subacute Sclerosing Panencephalitis (SSPE)

32
Q

What is unique about Togavirus group?

A

Nothing for the group

BUT know what is unique about the specific viruses that fall under it (i.e. spread, symptoms, who is affected etc.)

33
Q

Is Coronavirus group positive or negative?

34
Q

Is Coronavirus group double or single stranded RNA?

35
Q

What is the shape of the Coronavirus group capsid?

36
Q

Does the Coronavirus group have a envelope?

A

YES - from cytoplasmic vessels

37
Q

Does the Coronavirus group replicate in the nucleus or cytoplasm?

38
Q

Does Coronavirus group use RDRP?

39
Q

Does Coronavirus group carry their RDRP?

40
Q

What special charateristic does Coronavirus group have?

A

outter covering of pedal like projections that resemble fring (these are NOT spikes)

41
Q

What is SARS

A

Severe Acute Respiratory Syndrom

42
Q

What is the causative agent of SARS?

A

Unspecified Cornonavirus

43
Q

What is unique about Coronavirus group?

A
  • Pedal like projections
  • Helical capsid
44
Q

Is Calicivirus group positive or negative?

45
Q

Is Calicivirus double or single stranded?

46
Q

What is the shape of Calicivirus group capsid?

A

Icosahedral - cup like indentations “wine glass”

47
Q

Does the Calicivirus have an envelope?

48
Q

Does Calicivirus replicate in the nucleus or cytoplasm?

49
Q

Does Calicivirus use RDRP?

50
Q

Does Calicivirus group carry their RDRP?

51
Q

What is the specific virus that falls under Calicivirus group?

A

Norovirus “cruise ship” virus

52
Q

what specific virus of Calicivirus group causes mild diarrhea, flu symptoms, spread through fecal/oral and is the cause of 1/3 of all viral gastrointestinal ds.?

53
Q

What is unique about Calicivirus group?

A

Nothing for the group

BUT know what is unique for the specific virus (i.e. spread, nickname, symptoms etc.)

54
Q

Is Oncornavirus group positive or negative?

55
Q

Is Oncornavirus double or single stranded?

56
Q

What is the shape of Oncornavirus group capsid?

A

Icosahedral

57
Q

Does Oncornavirus group have an envelope?

A

Yes - from plasma membrane

58
Q

Does Oncornavirus replicate in the nucleus or cytoplasm?

59
Q

Does Oncornavirus use RDRP?

A

NO

  • They use RDDP to change from RNA to DNA
  • Then use DDDP to turn in to the ds. DNA
  • Then once they have turned to ds. DNA they insert into host choromosome and stay latent
60
Q

Does Oncornavirus carry RDRP?

A

NO - b/c they use RDDP

They carry RDDP

61
Q

What is a specific virus of Oncornavirus group?

A

HIV - Human immunodeficiency virus

62
Q

What specific virus of Oncornavirus group is sexually transmitted and attacks CD4 antigen on helper T-cells?

63
Q

HIV uses RDDP and RDDP does not “proof read” so mistakes are made. What is the signifigance of those mistakes?

A
  • May turn RNA to DNA but it’s not very usefull
  • May allow virus to enter your chromosomes but as long as it remains latent, you won’t encouter problems. Problems only occur when the virus come back out of the chromosome and picks up where replication left off
64
Q

What is unique about Oncornovirus group?

A
  • Replicates in the NUCLEUS
  • Carries RDDP (instead of RDRP)

Monica's TCC Tri 3 Cards (9 decks)

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