Ch. 18

viruses chemically bond to the cell it will infect

viral peplomers become active and drill a hole through the membrane of the cell

viral genes enter and take over the host cell causing it to produce new viruses

new viruses are produced at a high rate, they fill and burst the infected cell, killing it and releasing new viruses, most common final step

new viruses are produced at a slow rate and are released from the cell without killing it causing long term infection with multiple relapses

the virus goes dormant after the eclipse and is eventually activated and will cause lysis or temperate release or transformation

a mutation causing the infected cell to become cancer

have a structure similar to retro viruses, but does not have reverse transcriptase; all types known infect plants with an unknown mechanism

balls of protien that form the capsid, all viruses have an even number of them

allows the virus to attach to the cell it is infeting

drills a hole through the host cell membrane allowing the virus's genes to be injected in

not found in all viruses,it lines the inner surface of the capsid,making it capable of surviving for long periods of time outside of a host

central region of a virus and the only part that eneters a host cell containing either DNA or RNA that controls the virus's genetics

contain DNA in the core and are the most common type of virus

contains RNA in the core along with an enzyme called Reverse Transcriptase

creates DNA using the viruses RNA as a pattern, the DNA then infects the host nucleus

have a round or spear shaped thread

have at least one flat edge giving it a geometric shape

have an envelope

does not have an envelope

the outer shell of a virus, made of balls of protien

largest and most common members of Kingdom Virae; all species cause disease in the cells; all species cause disease in the cells they infect

viruses and related germs; only form of life on earth that exist without cells; only active when infecting the cells of another organism