Term
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Definition
| virus that infects bacteria |
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Term
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Definition
| kill their host after infection |
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Term
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Definition
T4 directs the synthesis of its own RNA and replicated its unique DNA
within 1 minute of infection the host stops synthesizing host DNA and transcription of phages genes begins followed rapidly by translation |
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Term
| early proteins and middle proteins |
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Definition
| primarily needed for DNA replication and transcription |
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Term
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Definition
| head and tail proteins and release proteins |
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Term
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Definition
| T4 encodes for this to bind to sigma70 and interfere with its ability to recognize host promoters |
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Term
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Definition
| virus has stable relationship with host |
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Term
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Definition
| state where most viral genes are not expressed and the viral genome (prophage) is replicated with the host's chromosome |
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Term
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Definition
| viral genome in hosts chromosome |
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Term
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Definition
| cells that harbor a temperate virus |
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Term
| phage-encoded repressor protein |
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Definition
| controls lysogeny, if inactivated the prophage becomes lytic |
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Term
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Definition
| virus that has lost its ability to leave the host genome (usually due to a mutation) |
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Term
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Definition
virus that infects E. coli
can be temperate or virulent |
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Term
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Definition
| region where short single-stranded pieces of DNA at the ends of a genome base-pair, circularizing the DNA |
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Term
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Definition
| where lysogenic lambda integrates into host chromosome |
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Term
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Definition
| enzyme that allows lambda to enter host chromosome |
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Term
| rolling circle replication |
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Definition
| how virulent lambda synthesizes linear concatemers of DNA |
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Term
1. one strand of circular dsDNA is nicked and a long single-stranded concatemer is made using the intact strand as template
2. Second strand made using single-stranded concatemer as template and ds concatemer is cut into-genome-sized lengths at cos sites creating the sticky ends (12 nucleotide ss ends) |
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Definition
| process of rolling circle replication |
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Term
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Definition
lambda repressor protein
if made synthesis of all other lambda-encoded proteins is repressed so it is lysogenic |
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Term
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Definition
protein that represses expression of cI protein
if this is made, cI cannot be made so it is lytic |
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Term
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Definition
| enveloped viruses are released via budding, which does not lyse the cell, so host cell continues making more virus particles |
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Term
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Definition
| there is a delay between infection and host cell lysis |
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Term
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Definition
| process by which animal viruses convert normal cells into tumor cells |
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