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R plasmids

R plasmids --> resistance plasmids

Plasmid's carrying genes responsible for antibiotic (or antibacterial drug) resistance among bacteria (notably enterobacteriaceae); they may be conjugative or nonconjugative plasmid's, the former possessing transfer genes (resistance transfer factor) lacking in the latter.

Synonym: r factors, r plasmids, resistance factors, resistance-transferring episomes.


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Re: Natural selection is proven wrong

... reproducers such as E. coli produce clones of itself which are identical to the parent. Fast responses to environment is then from exchanging plasmids but these are separate transient genomes, not the primary genome that accomplishes cell growth and reproduction. There are "living fossils" ...

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by GaryGaulin
Tue Sep 01, 2009 3:00 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 16282

Re:

... reproducers such as E. coli produce clones of itself which are identical to the parent. Fast responses to environment is then from exchanging plasmids but these are separate transient genomes, not the primary genome that accomplishes cell growth and reproduction. There are "living fossils" ...

See entire post
by GaryGaulin
Thu Aug 27, 2009 9:13 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 16282

Re:

Yes capsid proteins can self asemble in solution. I am not sure what you mean by manufactured, but the genes can be cloned in plasmids, and protein can be synthesized without anything else from plamids. Re self assembly: do you have any source material handy, something I can look at ...

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by raneynickel
Sun Aug 09, 2009 12:40 pm
 
Forum: Microbiology
Topic: some general capsid questions
Replies: 3
Views: 93

some general capsid questions

Yes capsid proteins can self asemble in solution. I am not sure what you mean by manufactured, but the genes can be cloned in plasmids, and protein can be synthesized without anything else from plamids.

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by canalon
Sat Aug 08, 2009 1:47 am
 
Forum: Microbiology
Topic: some general capsid questions
Replies: 3
Views: 93

Re: The Colin Leslie Dean species paradox

... very different from Eukaryotes (us) genetically--that's why they are in a seperate domain from protists, fungi, plants and animals. They ingest plasmids and are infected by viruses. Thus they have insertions, deletions and replacement of their DNA. Some of them revert back and are called revertants. ...

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by AFJ
Sat Jul 18, 2009 6:07 pm
 
Forum: Evolution
Topic: The Colin Leslie Dean species paradox
Replies: 120
Views: 2138
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