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Symmetries of genetic code-doublets
Journal of Molecular Evolution
|September 8, 1975
Abstract:
The fact that 64 base triplets code only about 20 essential amino acids implies a strong degeneracy of certain base doublets. It is shown that the set of degenerate base doublets and the set of non-degenerate base doublets are highlly structured. A mathematical formalism is introduced which allows a systematic description of the consequences of an exchange of bases in a doublet. By this formalism it is shown that the two mentioned set have in fact the same structure.