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The codons which donot code for amino acids are the 3 termination codons, on approaching which the translation of m-RNA into an amino acid of the protein terminates..The three termination codons are UAA, UAG, UGA
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 Termination codon is a nucleotide triplet within messenger RNA that signals a termination of translation into proteins. Proteins are based on polypeptides, which are unique sequences of amino acids. Most codons in messenger RNA (from DNA) correspond to the addition of an amino acid to a growing polypeptide chain, which may ultimately become a protein. Stop codons signal the termination of this process by binding release factors, which cause the ribosomal subunits to disassociate, releasing the amino acid chain. While start codons need nearby sequences or initiation factors to start translation, a stop codon alone is sufficient to initiate termination.

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In the genetic code, a stop codon (or termination codon) is a nucleotide triplet within messenger RNA that signals a termination of translation. Proteins are based on polypeptides, which are unique sequences of amino acids.
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Termination codons are also known as stop codons. It is a nucleotide triplet within mRNA that signals a termination of translation.

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the triplet of nucleotides on a mRNA molecule at which the process of translation ends. it is recognized by proteins called 'release factor'. the 3 stop codons are UGA, UAA, UAG

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