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The distribution of codons by classes of triplets in the sequence of genes
Physiologie (Bucarest)
|July 1, 1986
Abstract:
According to a criterion of symmetry-asymmetry, the triplets of the genetic code can be divided into four classes. In the genes of viruses and human mitochondria, the frequency by which a codon is followed by a codon of the same class is higher than that theoretically estimated. This is the consequence of the fact that in an initial stage of evolution many codons were duplicated.
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