A codon is a sequence of three nucleotides in DNA or RNA that corresponds to a specific amino acid or a stop signal during protein synthesis. In the genetic code, there are 64 possible codons, which include 61 that specify amino acids and 3 that serve as stop codons. Each codon acts as a code for the incorporation of a particular amino acid into a growing polypeptide chain during the process of translation. For example, the codon AUG is known as the start codon and codes for the amino acid methionine, while UAA, UAG, and UGA are examples of stop codons that signal the termination of protein synthesis. Codons are essential for translating the genetic information stored in DNA into functional proteins.
What is a codon
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