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25 Cards in this Set
- Front
- Back
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Retrovirus occur only which type of bacteria
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Eukaryotes
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Difference between
ds DNA virus / ss DNA virus |
ds - goes through ds DNA intermediate
ss - a complimentary single strand is used as a template to make more copies (virus particles) |
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Difference between
ss RNA + / ss RNA - |
ss RNA + can be used directly in translation (can make RNA polymerase to make specialized copies
ss RNA - Strand is not translated. Replication by transcription |
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ss RNA
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RETROVIRUS
Only in Eukaryotes Reverse Transcription |
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Virions encounter the cell through _____ contact
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random
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All Functional virus contain ____ acid
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All Functional virus contain Nucleic Acid
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Lytic Virus
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Kills host cell as part of replication process
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Latent Virus
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has the ability to enter a dormant state
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Persistent Virus
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Causes the host cell to produce virions at a steady rate WITHOUT host cell lysis
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Bacteriophage
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a virus that infects a prokaryotic host
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virion
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intact viral particle
Not metabolically active |
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viral plaque
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an area on an agar surface that has been cleared of cells due to cell lysis by a viral infection
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Capsid
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Protein coat
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virulent bacteriophage
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always causes quick cell lysis once the infection has been established
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Persistent Eukaryotic-Based virus
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the host cell produces and releases virions at a slow, steady rate without cell death.
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Latent Eukaryotic-Based virus
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can remain inactive state int he host cell without virions being produced
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How Bacteriophage first interacts and infects cell
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attaches to the outside and phage DNA gets injected. Phage remains outside of the cell
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How Eukaryotic virus interacts and infects cell
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Requires multiple virions infecting one cell
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Phage Lambda
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a lysogenic bacteriophage
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Lysogenic pathway
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Viral DNA integrated into the host chromosome and the host can live in the state indefinitely
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POLYPROTEIN in RETROVIRUSES
Produces multiple functional protein when ____ |
POLYPROTEIN in RETROVIRUSES
Produces multiple functional protein when it gets cleaved and processed |
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POLYPROTEIN in RETROVIRUSES
It gets cleaved by viral _____ |
POLYPROTEIN in RETROVIRUSES
It gets cleaved by viral protease |
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POLYPROTEIN in RETROVIRUSES
during processing _______ ______ is produced |
POLYPROTEIN in RETROVIRUSES
during processing reverse transcriptase is produced |
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POLYPROTEIN in RETROVIRUSES
during processing ______ ______ is produced |
POLYPROTEIN in RETROVIRUSES
during processing envelope protein and capsid protein is produced |
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Reverse Transcriptase
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enzyme found in retroviruses that is able to use RNA as a template to make a new DNA strand
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