Re: "Human genome further unravelled" og "junk DNA" [ genshow? ]

Glenn Møller-Holst wrote:
> Glenn Møller-Holst wrote:
>> Organismer (incl. mennesker) er komplicerede - og vi er kun ved at 
>> skrabe overfladen af forståelsen af hvordan de (vi) fungerer:
>>
>> 14 June 2007, Human genome further unravelled:
>> http://news.bbc.co.uk/2/hi/science/nature/6749213.stm
>> Citat: "...
>> it suggests genes, so called junk DNA and other elements, together 
>> weave an intricate control network.
>> ....
>> He said: "The genome looks like it is far more of a network of RNA 
>> transcripts that are all collaborating together. Some go off and make 
>> proteins; [and] quite a few, although we know they are there, we 
>> really do not have a good understanding of what they do.
>>
>> "This leads to a much more complex picture."
>>
>> The researchers now hope to scale up their efforts to look at the 
>> other 99% of the genome.
>> ...."
>>
>> -
>>
>> http://da.wikipedia.org/wiki/Junk-DNA
>>
>> /Glenn
> 
> Når sådan en fisk er så kompliceret - hvor meget mon vi så tænder og 
> slukker vores gener i "kampens" hede?:
> 
> 
> Dec. 12, 2007 When She's Turned On, Some Of Her Genes Turn Off, Fish 
> Study Shows:
> http://www.sciencedaily.com/releases/2007/12/071210162931.htm
> Citat: "...
> When a female is attracted to a male, entire suites of genes in her 
> brain turn on and off, show biologists from The University of Texas at 
> Austin studying swordtail fish.
> ....
> This is one of few studies to link changes in the expression of genes 
> with changes in an individual's behavior in different social situations
> ....
> "What we have not appreciated until now is how dynamic the genome is," 
> said Hofmann. "It is constantly changing and even in a very short period 
> of time, 10 percent of the protein-coding genome can change its 
> activity. We now have a genomic view of these dynamic processes within a 
> social context."
> ...."
> 
> Swordtail fish er vist sådan en her:
> http://en.wikipedia.org/wiki/Green_swordtail
> 
> hilsen
> 
> Glenn

Vi er faktisk meget "værre":

Apr. 23, 2008 Nurture Over Nature: Certain Genes Are Turned On Or Off By 
Geography And Lifestyle, Study Suggests:
http://www.sciencedaily.com/releases/2008/04/080422150659.htm
Citat: "...
Although Idaghdour initially hypothesized that environmental factors 
would play a role in gene expression, he didn't expect such large 
differences. About 30 percent of genes were differentially expressed 
between urban dwellers and mountain agrarians.
...."

hilsen

Glenn