Abstract

Firstly we consider the new results about enzymatic capabilities in the RNA. In this framework we analyse the sequence-folding duality as a precursor of the genotype/phenotype duality. We discuss then which are the evolutive potentialities and limitations for a system with the absence and the presence of a nucleic acid to proteins translator code. We study the arise of the code in the living systems as a form of deep interlooking between the logic of the machinery and its hardware, discussing some problems that abstract modelization of this process implies. Finaly we propose to redefine the informational vocabulary usually employed in Molecular Biology.