Cellular physiology is didactically described in the top-down tradition, from genes to the phenotype (Alberts et al., 2002). This description is similar to that of man-made factories, with designers or programmers (the genes), and workers (the RNAs and proteins that build the phenotype). The Darwinian thought placed a directing agency in the interactions between organisms and the environmental contexts but the main focus remained in the genetic variants that allowed some phenotypes to survive the interactions while others were selected out. We remain with the task of explaining how such a genetic system first came into being. An apparent paradox arises, of how could the planners start their enterprise just gathering together into the factory some workers-to-be who never experienced their jobs, which would be similar to slave-hunting practices. A bottom-up perspective is taken in this work, devising a mechanism for the spontaneous origin of the biotic system, inside which the genetic processes arose. The spontaneity of processes may be categorized as self-organizational and genes are considered the memory part of the system. Sections 1 and 2 present some basic concepts about the living system components, relevant to understanding the genetic code. The model is presented in Sections 3-6, with some technical details of the process of formation of the coding/decoding system. The derived conceptual implications comprise Section 7.

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