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GCSE Biology · key term
A group of three bases on mRNA that specifies an amino acid or signals the end of translation.
Used by Edexcel
Specification 3.8B, 3.10B · Paper 1
Revise: Translation: Ribosomes, Codons and PolypeptidesEach group is called a codon. An amino-acid-coding codon specifies a particular amino acid, so successive codons determine which amino acids are added and in what order.
A set of three bases in mRNA that codes for a particular amino acid.
A codon is a triplet on mRNA. An anticodon is a complementary triplet on tRNA.
When describing translation, connect the order of mRNA codons to the order of amino acids in the polypeptide.
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