Authors of study claiming bacteria used usually toxic arsenic to build DNA stand by results
May 27, 2011
CBC News
http://www.cbc.ca/news/technology/story/2011/05/27/science-arsenic-bacteria-wolfe-simon.html
May 27, 2011
CBC News
http://www.cbc.ca/news/technology/story/2011/05/27/science-arsenic-bacteria-wolfe-simon.html
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