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13 September, 10:57

Why are there only 20 amino acids when there are 64 variants of triplets?

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  1. 13 September, 11:25
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    The genetic code is degenerate.

    Explanation:

    The genetic code is degenerate: there are 64 triplets of different codons (sequence of three bases of mRNA that codes for a certain amino acid) and 20 amino acids. That is, an amico acid can be encoded by more than one codon.
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