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Viruses
RORY THE ROMAN!!!!!
7
Biology
7th Grade
11/25/2012

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Term
What are viruses?
Definition
microscopic particles that invade cells and cause disease
Term
Where can you find viruses?
Definition
EVERYWHERE!!!!!!!!!!
Term
Why are viruses non-living?
Definition
They only have two characteristics of life.
-Nucleic Acids
-Reproduce (Require a host)
Term
What are viruses made of?
Definition
Nucleic acids and a protein coat
Term
How do viruses reproduce?
Definition
require a host, hijack the "machinery" of a cell
Term
What is the lytic cycle?
Definition
- Immediately makes new virus particles
- Kills host cell
Term
Lysogenic cycle
Definition
- Insect viral genes into host, but new viruses aren't immediately made
-can remain inactive until conditions are right
*once active=lytic cycle
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