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Competence

Competence

(Science: cell biology) ability to take up dna and become genetically transformed.


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Re: Theories - Origin of Life

... environment. 2 The host cell must be capable of receiving this DNA. In other words it must be competent, which begs the question, what is competence? 3 For any interaction between the cell and free DNA, specific sequences and receptors are involved.. 4 How is the entry of DNA through the ...

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by scottie
Fri Jan 27, 2012 12:48 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 906976

Re: Why can you plate directly when having ampicillin?

... of the gene to clone (or empty plasmid) , but it is better to give to the cells 1-2 generations to adquire again normal characteristics from the competence condition, before platting but I suposse that this process could happen on the agar medium. For that after heat shock ,people add medium ...

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by protold
Thu Nov 18, 2010 6:41 am
 
Forum: Molecular Biology
Topic: Why can you plate directly when having ampicillin?
Replies: 4
Views: 6330

why only 2 sexes

... last up to one hour, or 3 generations of E. coli , to complete). As I said recombination and acquisition of foreign DNA (by conjugation, natural competence, transduction,...) is independant from replication in bacteria.

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by canalon
Fri Jun 04, 2010 2:12 am
 
Forum: Evolution
Topic: why only 2 sexes
Replies: 15
Views: 8651

Watson's disgrace

... statement will always be blown up by the media. But a nobel prize is an award for wonderful acomplishments and certainly not a proof of universal competence as many laureatees have proved...

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by canalon
Sat Dec 01, 2007 4:47 am
 
Forum: General Discussion
Topic: Watson's disgrace
Replies: 24
Views: 7983

Genetics related MCQ

Not really - besides plasmid transformation, there is also the uptake of naked DNA when bacteria in natural populations are in a state of natural competence. Fragments of chromosomal DNA from lysed bacteria can enter into neigbouring bacteria (then followed by homologous recombination). There is ...

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by Navin
Fri Nov 30, 2007 3:32 pm
 
Forum: Genetics
Topic: Genetics related MCQ
Replies: 2
Views: 10129
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