It should be noted that these general traits characterizing a code are rediscovered precisely in what today is called a genetic code; not because it depends on an effect of a signifier, but on the contrary because the chain it constitutes is only signifying in a secondary way, insofar as it calls into play couplings between qualified flows, interactions that are exclusively indirect, qualitative composites that are essentially limited, and organs of perception and extrachemical factors that select and appropriate the cellular connections.