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What does a virus consist of?
DNA/RAN surrounded by a protien coat
What are the shapes of viruses?
- Isometric - equal sides
- Helical - kind of rod shaped
- Complex - Stop sign with legs
What is the lytic cycle?
- When a virus is "alive."
- Example: When you have a cold sore.
What is the latent cycle?
- When the virus is inert or dormant.
- Example: when you don't have a cold sore.
What are the 6 steps of the lytic cycle?
- Assembly (or maturation)
What happens during attachment?
The virus attaches to the bacteria
What happens during penetration?
The virus or its nucleic acid enters the cell.
What happens during Transcription/Replication?
Duplication of viral components
What happens during assembly?
Replicated viral components become a mature virus
What happens during release?
Host cell bursts and releases virus's to the environment
What is masking?
When a virus uses part of the old cells membrane as its envelope, in order to look like the host cell.
What is Lysogeny?
- Replication of a temperate virus
- (non-productive cycle)
What is incorporation?
- When the DNA/RNA of the virus incorporates into the host chromosome
- DNA only replicates when the host replicates
What is lysogenic conversion?
When the virus confers new properties on to the cell
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