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Microbiology > Virus Generalities > Flashcards

Virus Generalities Flashcards

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Biology 101 flashcards
1
Q

ALL DNA viruses are icosahedral EXCEPT

A

Poxvirus

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2
Q

Most RNA viruses have helical symmetry EXCEPT

A 
Flaviviruses
Caliciviruses
Reoviruses
Picornaviruses
Togaviruses
Hepevirus
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3
Q

All enveloped viruses acquire their envelope from plasma membrane EXCEPT

A

Herpes virus (nuclear membrane)

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4
Q

NAKED DNA VIRUS

A

Papillomavirus
Adenovirus
Parvovirus
Polyomavirus

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5
Q

NAKED RNA VIRUS

A

Calicivirus
Picornavirus
Reovirus
Hepevirus

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6
Q

All viruses are haploid except

A

Retrovirus

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7
Q

RNA viruses have segmented genome

A

BOAR

Bunyavirus (3 segments)
Orthomyxovirus (8 segments)
Arenavirus (2 segments)
Reovirus (10 segments)

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8
Q

Only viruses with double stranded RNA genome

A

Reoviridae

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9
Q

Negative Strand RNA viruses

A

Always Bring Polymerase Or Fail Replication

Arenavirus
Bunyavirus
Paramyxovirus
Orthomyxovirus
Filovirus
Rhabdovirus
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10
Q

Most DNA viruses have both a negative and positive strand EXCEPT

A

Parvovirus (single stranded DNA genome)

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11
Q

All double stranded DNA have icosahedral symmetry EXCEPT

A

Poxvirus (DNA has complex structural proteins)

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12
Q

EXCHANGE of genes between 2 chromosomes by crossing over within base sequence homology

A

Recombination

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13
Q

SEGMENTED viruses exchange genetic material

A

Reassortment

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14
Q

Functional + NONfunctional = Functional

A

Complementation

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15
Q

NO GENE EXCHANGE

Simultaneous infection with 2 viruses

A

Phenotypic Mixing

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16
Q

LIVE VACCINES

A 
MMR
Japanese Encephalitis
Oral Polio
Varicella
Intranasal Influenza
Typhoid fever
BGC
Smallpox
17
Q

DNA Viruses

A

HHAPPPPy viruses

Hepadnavirus
Herpesvirus
Adenovirus
Poxvirus
Parvovirus
Polyomavirus
Papillomavirus
18
Q

All DNA viruses have double stranded DNA EXCEPT

A

Parvovirus

19
Q

All DNA viruses have linear DNA EXCEPT

A

Papilloma
Polyoma
Hepadna

20
Q

All DNA viruses are icosahedral EXCEPT

A

Poxvirus

21
Q

All DNA viruses replicate in the nucleus EXCEPT

A

Poxvirus

22
Q

All RNA viruses have single stranded RNA EXCEPT

A

Reovirus and Rotavirus

23
Q

All RNA viruses replicate in the CYTOPLASM EXCEPT

A

Influenza and Retrovirus

24
Q

PICORNAVIRIDAE

A

PERCHed on a PIC

Poliovirus
Echovirus
Rhinovirus
Coxsackievirus
Hepatitis A virus

Microbiology (106 decks)

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