This page discusses the genetic code, which consists of 64 codons encoding 20 amino acids with some redundancy. It highlights AUG as the start codon and notes codon usage bias affecting translation ef...This page discusses the genetic code, which consists of 64 codons encoding 20 amino acids with some redundancy. It highlights AUG as the start codon and notes codon usage bias affecting translation efficiency. While most of the genetic code is universal, there are exceptions in mitochondrial genes and some unicellular eukaryotes. The page also mentions the incorporation of nonstandard amino acids, such as selenocysteine and pyrrolysine, through specific codons.
