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kristina92293 kristina92293
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6 years ago
Which group consists only of amino acids with polar side chains?
 A) serine, threonine, and leucine
  B) serine, threonine, and cysteine
  C) serine, threonine, and valine
  D) serine, threonine, and isoleucine
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ashleyjohnson81ashleyjohnson81
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6 years ago
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