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Science
Biology
Microbiology
Exam 3 MBIO 3401
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Define Virus
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genetic element that can replicate only inside a living host
- they're acellular agent
- no self-made membrane or organic molecules
- no metabolism
- no growth
- no response
- no reproduction independent of host
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Terms in this set (90)
Define Virus
genetic element that can replicate only inside a living host
- they're acellular agent
- no self-made membrane or organic molecules
- no metabolism
- no growth
- no response
- no reproduction independent of host
Virus structures (capsid)
shell composed of a bunch of proteins called capsomeres, contains the nucleic acids or enzymes of the virus
what is the nucleocapsid? (virus structure)
in naked virus: capsid + nucleic acid
in envelope virus: capsid + nucleic acid without the envelope
What is an envelope? (virus structure)
membrane that gives protection from recognition but susceptible
What are the characteristics to distinguish viruses?
- Genetic material: what is the nucleic acid content?
- type of host
- viral shape
- viral envelope