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What is a virus?
in general, viruses are obligate intracellular parasites (have to do it; life in a cell is harmful to cell; if not in a cell, virus tries to find a cell by whatever means to use, or abuse)
Role of restriction enzyme
if cells DNA has special enzyme, it will cut up virus [DNA] before the virus chops up the original DNA
DNA from host cell falls apart; abuses by building with proteins and other resources to make own parts
Result of Lytic Cycle
causes symptoms, which are a lot of dead cells not doing what they're supposed to do
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