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Questions regarding retroviruses

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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Questions regarding retroviruses

Postby poisson » Fri Aug 31, 2012 9:41 am

DNA viruses transcribe RNA to produce proteins.

Why can't retroviruses use its original RNA to produce protein?

Why do they need to go through a "redundant" step of RNA then DNA then RNA?

Thanks for answering.
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Re: Questions regarding retroviruses

Postby david23 » Sun Sep 09, 2012 4:21 pm

good question

Remember the retroviruses go 1 more step and that is they integrate their DNA into the host. Once it's integrated that DNA stays for life (of the cell) You will get more copies of the virus as a result. If the virus use its RNA alone at some point that RNA is going to degrade, remember that RNA is unstable.
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Postby JackBean » Mon Oct 08, 2012 2:52 pm

David wrote it already, but to make it more clear - two factors: number of copies and stability.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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