The Microbial World :: A look at all things small

0 registered users and 13 anonymous guests on-line.

You are an anonymous guest. You can register here.

3-1 Introduction
3-2 Viruses face several common obstacles that they must overcome to successfully replicate
3-3 Viruses often have common structures
3-4 The genome of viruses can be DNA or RNA
3-5 Viruses are classified by the nature of their viral nucleic acid
3-6 The life cycle of a virus is divided into several phases
3-7 To infect cells, viruses first need to attach to them.
3-8 Bacterial viruses almost always enter cells by injecting their nucleic acid.
3-9 Entry of eukaryotic viruses can involve penetration at the membrane or use of natural uptake pathways.
3-10 Viruses are lytic or lysogenic
3-11 The lytic cycle requires copying of the nucleic acid genome.
3-12 Viruses regulate viral protein production in a manner consistent with their host
3-13 After the parts of the virus are synthesized, they assemble into complete virions.
3-14 The lytic cycle ends with release of the finished virions from the cell.
3-15 Summary

The Microbial World