Answers

2013-12-22T14:34:26+08:00
 phenylalanine, valine, threonine, tryptophan, isoleucine,
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2013-12-23T15:51:45+08:00
Nonpolar aliphaticPolar, unchargedAromaticPositively charged
(or basic)Negatively charged
(or acidic)


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