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Is element

Is element --> insertion sequence

mobile nucleotide sequences that occur naturally in the genomes of bacterial populations. When inserted into bacterial dna, they inactivate the gene concerned, when they are removed the gene regains its activity. Closely related to transposons and range in size from a few hundred to a few thousand bases, but are usually less than 1500 bases.


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RNA

Cis and trans-acting regulatory elements are in essence transcriptional regulators/promoter sequences that are categorized based on acting distance. The lac operon in E.coli is a typical example of a cis-acting element. Promoter sequences ...

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by nukeman
Thu Mar 28, 2013 2:21 pm
 
Forum: Molecular Biology
Topic: RNA
Replies: 6
Views: 861

Unidentified Non-Human Remain

I'm having issues identifying a particular non-human bone element. The bone itself possesses several distinguishable characteristics. The only issue is I have no clue what it's function is. I have looked around and found that it may represent a tarsal ...

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by JeremiahRocker
Thu Feb 28, 2013 6:15 pm
 
Forum: Zoology Discussion
Topic: Unidentified Non-Human Remain
Replies: 0
Views: 136

Knockout mice

... of Cdc42 in the developing retina was achieved by crossing Cdc42 floxed mice [29] with mice expressing cre recombinase under the control of the α element of the Pax6 promoter [30]. " From Mat'l & Methods: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3553133/

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by jonmoulton
Wed Feb 06, 2013 4:24 pm
 
Forum: Genetics
Topic: Knockout mice
Replies: 5
Views: 837

Sound and how the brain reacts to it

... come back if all gets quiet again. I agree that there must be some pleasant association that was created at some point, but there must be another element for us, because EVERYBODY has pleasant associations, but only we get the distinct tingling. Mine, btw, doesn't travel - it stays in my head. ...

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by Snoozin
Thu Dec 13, 2012 2:57 am
 
Forum: Human Biology
Topic: Sound and how the brain reacts to it
Replies: 81
Views: 79285

Artificial Life

... evidences proofing it at all? By the way we still, in spite of our remarkable scientific progresses, have the slightest idea about the essential element of life-something which is traditionally referred to as soul/spirit/consciousness-am I right? Many thanks in advance for your response.

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by Phosphorus
Sat Nov 17, 2012 4:39 pm
 
Forum: General Discussion
Topic: Artificial Life
Replies: 0
Views: 232
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