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Finalllll Flashcards

1
Q

Name the DNA viruses

A

Parvo, Polyo, Papillo, Pox, Adeno, Hepadna, Herpes

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2
Q

Name the + ssRNA Viruses

A

Calci, Pico, Flavi, Toga, Corona, Retro

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3
Q

Name the Picornaviruses

A

Polio, Echo, Coxsackie, Rhino, HepA

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4
Q

Name the - sRNA Viruses

A

Parainfluenza, RSV, Measles, Mumps

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5
Q

Infectious agents grouped with viruses

A

HepD, viriods, and prions

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6
Q

What are some ways that viruses are grouped based on epi and patho?

A

Enteric, respiratory, arboviruses, sexually transmitted, hepatitis viruses

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7
Q

Members of the Potyvirus genus have no known insect vector: t/f

A

true, this is a virus that infects plants

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8
Q

What is the genome of the Potyvirus?

A

+ssRNA

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9
Q

What are two therapeutic agents used to treat persons exposed to influenza?

A

Amantadine and Zanamivir

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10
Q

In the genus granulovirus, how many enveloped nucleocapsids are there per occlusion body?

A

one

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11
Q

What are some symptoms of filovirus?

A

hemorrhages, malaise, abdominal pain, vomiting

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12
Q

What family is influenza virus in?

A

ORthomyxo

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13
Q

What gene is unique to plant viruses?

A

Cell to cell movement protein gene

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14
Q

What are some typical basis used to classify plant viruses?

A

Genomic organization, virion morphology, common name of host species, characteristic symptoms

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15
Q

What do you call a plant virus with divided genomic molecules that are encapsidated serparately?

A

multicomponent plant virus

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16
Q

What are a few things caused by influenza virus?

A

uncomplicated rhinotracheitis, viral pnemonia, upper respiratory tract infection, respiratoy viral infection followed by bacterial pneumonia

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17
Q

The protein matrix of baculovirus structure is soluble at which ph?

A

11

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18
Q

What it the type of genome for Ebola virus?

A

-ssRNA

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19
Q

What are some true statements about amanatadine?

A

reduces risk of untaxed becoming ill, shortens the duration on influenza, and can be given to those expose or infected with influenza, needs to be taken within 48 hours of symptom onsent

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20
Q

virus resistant plants have been generated by genetic engineering through ____ - derived resistance

A

pathogen

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21
Q

how can rubella be spread?

A

aerosols and transplacental transmission

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22
Q

What are some diseases caused by flavivirus?

A

st. loius encephalitis, yellow fever, dengue fever

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23
Q

Which subtypes of influenza share antigens?

A

none

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24
Q

patterns of light and dark green areas in dicots are known as

A

mosaics

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25
Viruses in the family potyviridae are transmitted by
aphids
26
What family is the ebola viruses in?
filovirus
27
What causes antigenic drift of the influenza virus?
point mutations in the RNA genes
28
What is the transmission vector for alpha virus?
mosquitos
29
What are some characteristics of alpha virus?
have capsid proteins that are antigenic ally cross reactive, they have a +ssRNA, they have an icosahedral capsid, they have an envelop with lipids derived from host cell membrane
30
What are some requirements for initiation of infection by plant viruses?
virus must be at sight of wound, must enter by wound in a cell, must use passive entry
31
Where does maturation of the ebola virus occur?
budding of the plasma membrane
32
Baculoviral envelopes are obtained from..
cytoplasmic membranes, de novo, budding through plasma membrane, and from peri-nuclear membranes
33
What is the morphology of the ebolas virus?
filamentous
34
What are some symptoms resulting from congenital rubella syndrome
congenital heart disease, deafness, cataracts, mental retardation
35
How can a virus enter plant cells?
insect vectors, abraisiongs, cutting tools, infected pollon
36
Structural proteins of this virus are translated from a 26S subgeneric fragment, rather than the whole genome
aphlaviruses
37
Which subtype of influenza undergoes antigenic shift?
A
38
The Marburg virus is transmissible to humans through
monkeys
39
What are some ways to recover from influenza?
fluids, cough medicine for sleep, rest, stay warm
40
What vector transmits the tobacco mosaic virus?
no known vector
41
What are some geniuses in the togaviridae family?
arterivirus, alphavirus, rubivirus
42
the breaking color of petals, the result of anthocyanin pigment loss
variegation
43
What are some common control methods of plant viruses?
use virus resistant varieties, use virus free seeds, genetic engineering, control vectors
44
What are some true statements about the attachment and replication of alphaviruse?
once in cytoplasm, the +RNA binds to ribosomes and is translated to mRNA/ visions release genome into cytosol when acidification occurs/ the 36s RNA encodes the capsid and envelope proteins, virus enters through receptor mediated endocytosis
45
What are some diseases caused by flavivirus?
st. louis encephalitis, denguq, yellow fever
46
What are some plant vision morphologies?
isometric, baciliform, filamentous, geminate
47
Systemic symptoms of plant viral infections include
chlorosis, ringspots, moasics, variegation
48
a disease symptom for plant viruses that are a defensive response by the host to virus infection
local lesions
49
what are some problems for HIV vaccination
possible genetic recombination, antigenic drift, numerous strains, enters through mucosal route, establishes lifelong infection
50
Which of the following are possible routes for viruses to spread fro infected sites in plants
move through plasmodesmata, virus encoded movement proteins, movement through vascular tissue, replication within cell
51
nucelocapsids are occluded by spheroidin proteins in which subfamily?
entomopoxvirinae
52
Natural virus transmission for plant viruses includes
seed, nematode, vegetative, pollen
53
Which immune system comonent protects against upper respiratory tract with influenza?
IgA
54
What causes a runny nose in an influenza infection
holes between the basal cells
55
What is a characteristic of granulovirus?
one enveloped nucelocapsid per occlusion body
56
What antibody prevents infection of the lungs during an influenza infection
IgG
57
How does the flavivirus acquire its envelope?
budding into intracellular vesivels
58
What are some characteristics of viral pneumonia
aveolar epithelium is destroyed and leads to capillary leaks, can lea to hypoxemia and death, progresses very rapidly, follows infection of influenza
59
necrotic symptoms of plants include
disruption of starch translocation, death of the whole plant, death of organs, death of tissues
60
What is the primary role of cell mediated immunity for influenza infections
essential for recovery from both influenza and viral pneumonia
61
baculovirus proteins include
glycoproteins, infected cell proteins, phosphoproteins
62
What is spherodin?
occulsion protein for entomopoxviruses
63
What restricts an influenza infection to the original site
heterotypic immunity
64
What are some characteristics of par?
used to amplify viral NA, specific primers needed,
65
What influenza is associated with pandemics?
A
66
What is the target cell for HIV?
CD4+
67
What does Yellow Fever get its name from?
jaundice
68
What are some characteristics of Baculoviruses?
use for biological pesticide, two general differ in number of nucleocapsids per occlusion body, uses a eukaryotic system, virus produced within 8 hrs following infection
69
Which HIV stage is the HIV load in the plasma the highest?
acute
70
What is the genome of baculovirus pathogenic to insects?
dsDNA

Virology (12 decks)

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