Figure 5.

A positive feedback loop mechanism for the early development of the translation system. At each evolutionary stage, the stability and fidelity of the translation system is enhanced by the peptides it produces. This new superior translation system is able to synthesize proteins of even greater functional capability that can, in turn, act on the translation system to further enhance its own functional capability. This mechanism may have been a central driving force in the transition from the RNA world to modern cellular life.