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Viroid

viroid

(Science: plant biology, virology) Extremely small viruses of plants. Their genome is a 240-350 nucleotide circular rNA strand, extensively base paired with itself, so they resist RNAase attack.

at one time the term was also used casually of self replicative particles such as the kappa particle in paramecium.


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"Twenty questions"-biology game

virus? viroid? protein? aminoacid? sugar? lipid? nucleic acid?

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by MrMistery
Wed Aug 30, 2006 6:10 am
 
Forum: General Discussion
Topic: "Twenty questions"-biology game
Replies: 759
Views: 88721

microb problems

... flask would contain beta_galactosidase? a. A b. B c. C d. A and B e. B and C My answer: e because lactose can be degraded to galactosidase. 4. Viroid contain a. only RNA b. only DNA c. only protein d. RNA and DNA My answer: d I read that viroid consist only of nucleic acid, not sure if it means ...

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by kabuto
Sun Apr 16, 2006 12:55 pm
 
Forum: Microbiology
Topic: microb problems
Replies: 4
Views: 1003

"Twenty questions"-biology game

Viroid, right?

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by MrMistery
Wed Mar 29, 2006 6:01 pm
 
Forum: General Discussion
Topic: "Twenty questions"-biology game
Replies: 759
Views: 88721

hepatitis

... you can only get hepatitis B if you come into contact with an infected person's fluids. Hepatitis D is not even caused by a virus, it caused by a viroid, located in the capsid of the hepatitis B virus

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by MrMistery
Fri Mar 03, 2006 6:37 pm
 
Forum: Human Biology
Topic: hepatitis
Replies: 8
Views: 806

about virus

*Remembering the national lot* viroid(virusoid-they are the same thing)= small nude RNA particle, with small molecular weight(<100 kDa), no protein coat. because it does not have a protein coat it "hitches a ride" in a virus's capside. ...

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by MrMistery
Mon Oct 17, 2005 6:03 pm
 
Forum: Microbiology
Topic: about virus
Replies: 36
Views: 8763
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