Summary
Recent experiments on the interaction of amino acids with homopolyribonucleic acids as measured by proton magnetic resonance spectroscopy and on the interactions of ribonucleoside 5′-monophosphates with immobilized amino acids give relative binding strengths that are not reconcilable with the present genetic code in any simple way.
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Raszka, M., Mandel, M. Is there a physical chemical basis for the present genetic code?. J Mol Evol 2, 38–43 (1972). https://doi.org/10.1007/BF01653941
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DOI: https://doi.org/10.1007/BF01653941