explain why methionine is the first amino acid in every growing polypeptide?

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2007-01-29 11:30:42 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology

There is only one start codon - AUG. All proteins start with methionine because AUG codes for it.

2007-01-29 11:35:47 · answer #1 · answered by citrus punch 4 · 0⤊ 0⤋

AUG (appears as TAC in DNA) is the universal start codon, so it the first codon to code for it's amino acid which is Methionine.

2007-01-29 11:50:32 · answer #2 · answered by the poo goo 2 · 0⤊ 0⤋

AUG is the "start codon" and it calls for methionine.

2007-01-29 11:34:04 · answer #3 · answered by ecolink 7 · 1⤊ 0⤋