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ap bio unit 4 part 2

viruses

TermDefinition
virus - is simply a strand of DNA or RNA wrapped in a protein coat that pirates a host cell - lifeless - can't replicate w/out another cell
lytic cycle - pathogenic viruses - replicate IMMEDIATELY - cause sickness
lysogenic cycle - virus lies dormant inside your cell and incorporates in your DNA (hides in your DNA and replicates) - once it is activated it goes to the lytic cycle
in the lysogenic cycle... the DNA of a phage is integrated into the host cell's chromosome as a provirus
retroviruses carry an enzyme, reverse transcriptase, that catalyzes the synthesis of cDNA from the RNA template
in the lytic cycle... the host cell is ruptured to release new viruses
only SOME RNA viruses ____ are virulent and cause lysis of a host cell
RNA replicase used to catalyze RNA replication
when a virulent phage attacks a bacterial cell... only the DNA is injected into the cell
the retroviruses... synthesize cDNA from the viral RNA
restriction endonucleases are useful in recombinant DNA techniques because they cut DNA at specific sites
Created by: tpolinsky24
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