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Adapting to Arsenic
Ashley P. Taylor | Jun 1, 2015
Andean communities may have evolved the ability to metabolize arsenic, a trait that could be the first documented example of a toxic substance acting as an agent of natural selection in humans.
How Rice Overcomes Arsenic
Kate Yandell | Oct 20, 2014
Researchers have discovered a transporter protein in rice that sequesters arsenic in vacuoles, preventing the toxic element from traveling into grains.
No Arsenic-Based Life
Hayley Dunning | Jul 9, 2012
Two new studies conclusively prove "arsenic-based" bacteria hailed by NASA researchers as a new form of life needs phosphate after all.
Arsenic-based Life Challenged Again
Hannah Waters | Jan 24, 2012
An attempt to regrow the infamous GFAJ-1 bacteria, reported to incorporate arsenic into its DNA backbone, has failed.
Tia Ghose | Dec 19, 2011
Meet the species whose DNA has recently been sequenced.
Arsenic-based life debate continues
Jessica P. Johnson | Jun 3, 2011
More than a dozen researchers voice their concerns about a 2010 paper that claims bacteria can use arsenic in place of phosphorus in its DNA and other biomolecules, such as proteins.