User contributions for 081513439

A user with 1 edit. Account created on 28 October 2010.
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12 November 2010

  • 09:1009:10, 12 November 2010 diff hist +121 N Amino acid Created page with 'There are 20 amino acids with the general structure H2NCHRCOOH. The R group determines the specificity of the amino acid.'