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timmmmy timmmmy
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6 years ago
Why is methionine the first amino acid to be added to every polypeptide chain?
 
  What will be an ideal response?
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6 years ago
Because the start codon, AUG, specifies methionine. Since the start codon signals the beginning of translation, methionine is always the first amino acid added to a new polypeptide chain.
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