BIOL 1201 : BioTest4NotesViruses
Document Summary
If immune system killed viral cells in body it would kill you. Immune system responds so strongly the older you are and can kill you(chicken pox) Do not belong in family tree of life. Refer to them as being active or inactive. Symbiotic/parasitic relationship: cell is harmed, virus is benefited. As selection took place over thousands of generation. Viruses are striped down versions of living cells. *viruses for every single species on the planet. H1n1-uses h to find its host cell and to get into the cell(h helps virus get in and n helps it leave) Enzymes: influenza, cold(upper respiratory track cells in humans. Every time the host cell divides the virus genome also replicates. *virus comes in with genome, inserted into double helix of dna. Ex: hiv enters its own host cell, enters genome, cell becomes genetically modified cell, contains all information required to make new hiv cells.
