The sequence of amino acids in a fragment of a protein molecule is as follows: Asp-Met-Tri. Identify the possible DNA triplets that encode this protein fragment.
1) the amino acid Asp is encoded by GAU or GAC, therefore, according to the principle of complementarity on DNA, it is encoded by the CTA or CTG triplet;
2) the amino acid Met is encoded by the AUG triplet, therefore, on DNA it is encoded by the TAC triplet;
3) amino acid Three is encoded by the UGG triplet, therefore, on DNA it is encoded by the ACC triplet.
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