Micro - POSITIVE Single Stranded RNA Flashcards

1
Q

What is the smallest of all RNA viruses?

A

Picornavirus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Is Picornavirus group double or single stranded?

A

Single

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Is Piconavirus positive or negative?

A

Positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the shape of Picornavirus group capsid?

A

Icosahedral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Does Picornavirus group have an envelope?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Is Picornavirus replicated in the nucleus or cytoplasm?

A

Cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Does Picornavirs use RDRP?

A

YES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Does Picornavirus group carry their RDRP?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the two subcategories of Picornavirus?

A
  • Rhinoviruses (nose - respiratory)
  • Enteroviruses (intestine)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

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

A

Enterovirus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the major examples of Enterovirus?

A
  • Hepatitis A virus
  • Polio virus
  • Coxsackie A virus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

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

A
  • Salk - Inactive
  • Sabine - Active
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is unique about Picornavirus group?

A

Smallest of RNA viruses

PICO = SMALL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Is Togavirus group positive or negative?

A

Positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Is Togavirus group double or single stranded RNA?

A

Single

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the shape of the Togavirus group capsid?

A

Icosahedral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Does the Togavirus group have a capsid?

A

YES - from the plasma membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Do the Togavirus group replicate in the nucleus or cytoplasm?

A

Cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Does Togavirus group use RDRP?

A

YES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Does Togavirus group carry their RDRP?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What are the two subcatagories of Togavirus group?

A
  • Alphavirus
  • Flavivirus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

A
29
Q

Arthorpod borne Alphaviruses

A
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?

A

Positive

34
Q

Is Coronavirus group double or single stranded RNA?

A

Single

35
Q

What is the shape of the Coronavirus group capsid?

A

Helical

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?

A

Cytoplasm

38
Q

Does Coronavirus group use RDRP?

A

YES

39
Q

Does Coronavirus group carry their RDRP?

A

NO

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?

A

Positive

45
Q

Is Calicivirus double or single stranded?

A

Single

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?

A

NO

48
Q

Does Calicivirus replicate in the nucleus or cytoplasm?

A

Cytoplasm

49
Q

Does Calicivirus use RDRP?

A

YES

50
Q

Does Calicivirus group carry their RDRP?

A

NO

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.?

A

Norovirus

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?

A

Positive

55
Q

Is Oncornavirus double or single stranded?

A

Single

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?

A

NUCLEUS

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?

A

HIV

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)