| Biochemistry may explain why most of the exceptions to the genetic code involve stop codons. |
| We split the observable changes in the aligned codons in the two sequences into a number of disjoint groups. |
| An organism is defined through the set of preferred codons shaping its genome. |
| Due to the redundant nature of codons, the genetic code shows a significant level of neutrality. |
| Cysteine, tyrosine, asparagine and histidine are also attractive in this connection, because each of them is encoded by only two possible codons. |
| In effect, the DNA blueprint is a succession of code words, each consisting of a set of three nucleotides, known as codons, in the gene. |
