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Title: describe the five steps in a bacteriophage lysis (cycle)? Post by: ilindsey05 on Sep 13, 2012 describe the five steps in a bacteriophage lysis (cycle)?
Title: describe the five steps in a bacteriophage lysis (cycle)? Post by: buffalo on Sep 13, 2012 Diagram and description here:
http://www.bact.wisc.edu/themicrobialworld/Virus5c.jpg Title: describe the five steps in a bacteriophage lysis (cycle)? Post by: buffalo on Sep 13, 2012 1. Attachment - Virus attaches to the cell wall at a receptor site
2. Entry - The cell wall is weakened by the viral enzymes, and the deoxyribonucleic acid (DNA) of the virus is injected into the host cell. 3. Replication - The DNA of the host cell is inactivated, and the viral DNA takes over making viral proteins and viral nucleic acid. 4. Assembly - Viral coats of protein (capsids) are assembled with the nucleic acids filling the cell with new virus particles. 5. Release - Enzymes dissolve the host cell membrane from within. THe cell then bursts open (cell lysis) and the newly formed virus particles are released, free to infect other bacterial cells. |