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The Genetic Code
ОглавлениеAs mentioned above, the genetic code determines which amino acid will be inserted into a protein for each 3-nucleotide set, or codon, in the mRNA. More precisely, the genetic code is the assignment of each possible combination of 3 nucleotides to 1 of the 20 amino acids or to serve as a signal to stop translation. The code is universal, with a few minor exceptions (Box 2.5), meaning that it is the same in all organisms from bacteria to humans. The assignment of each codon to its amino acid appears in Table 2.2.