VESTIGES OF EARLY MOLECULAR PROCESSES LEADING TO THE GENETIC CODE

We compare predictions from a proposed model for the origin of the genetic code (J. Theor. Biol (1993) 164, 291–305) with existing information on the base content of codons and abundance of amino acid in different organisms. A comparison is also made between the three groups of amino acids suggested by the model and the two classes of aminoacetyl-tRNA synthetases. The observed agreements tend to suppot the model.