Friday 7 September 2018

proteins - Why are 3 nucleotides used as codons for amino-acid mapping in DNA?


DNA is made of 4 unique nucleotides. When coding for a protein, a sequence of 3 nucleotides is used to code for each amino acid. Why are codons 3 nucleotides in length?


A related question can be found here: why-are-there-exactly-four-nucleobases-in-dna




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