Virology T7 and Lambda

T7 and lambda's virions are __?__.
- Naked icosahedral
- T7 has a short tail
- Lambda has a long flexible tail
T7 life cycle includes __?__.
- 1. Adsorption (attachment through tail fiber)
- 2. Injection of DNA
- 3. Trx/Tln early genes
- 4. Replication
- 5. Trx/Tnl late genes
- 6. Assembly in cytoplas
- 7. Release by lysis
Genome is organized as __?__.

Class 1 (early), 2 (rep.), and 3 (structure/assembly) which are clustered by function and timing
DNA entry is characterized by __?__. (x4)
- Injection
- bacterial RNA pol recognition
- Spooling (coupled to trx)
- At TE sequence bacterial pol releases mRNA and viral pol takes over
Lambda is a good example of a viruse that has __?__ or __?__ life cylces.
- Lytic
- Lysogenic
Induction is: __?__. and is controlled by __?__.

The switch from lysogeny to lytic modes and is controlled by CL (represses Pr and Pl) and CRO (represses Prm to cont turn down Pr and Pl)

Author

p.reilly1227

83866

Card Set

Virology T7 and Lambda

Description

Virology T7 and Lambda

Updated

2011-05-05T02:47:46Z