Biology 1001A Lecture Notes - Lecture 2: Viroid, Veterinary Virology, Cell Membrane
Document Summary
Characteristics if viruses: they are not shown in the tree of life since they are lacking many properties shared by all living organisms, they depends on the host cell they infect since they don"t have a metabolic system. Infect plant cells: polyhedral, proteins form triangular units that fit like a soccer ball, protein spikes provide host cell recognition. Not made up of cells: do not have a metabolic process, does no grow or undergo cell division. 22. 2b animal viruses: both the viral coat and the genome enter a host cell. In some cases, newly completed viruses rupture the host cell"s plasma membrane, typically killing the cell. Latent phase- the time during which a virus remains in the cell in an inactive form. How do they differ from each other: there are two types of transduction: generalized and specialized. In generalized transduction, the bacteriophages can pick up any portion of the host"s genome.
