Actually they're not quite sure that it replaces phosphorus at this
point, the analogy I read was that unless there was some other mechinism
holding the DNA togeher it would be like building a skyscraper out of
sand instead of concrete and steal. Arsenic just wouldn't provide the
structural integrity and the DNA strands would just fall apart.
On 12/2/2010 4:59 PM, Jeffery Smith wrote:
Strange finding. They discovered a bacterium that uses arsenic in place of
phosphorus in its DNA. That is somewhat earth-shaking in the biology field, as
no other organism on earth has been able to substitute other elements in DNA.
Jeffery
On Nov 30, 2010, at 3:46 PM, Brian Walters wrote:
http://www.nasa.gov/home/hqnews/2010/nov/HQ_M10-167_Astrobiology.html
Cheers
Brian
++++++++++++++++++++++++++++++++++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/
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