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. 2017 Dec 21;12(12):e0189922. doi: 10.1371/journal.pone.0189922

Fig 1.

Fig 1

(A) The 1965 and the present-day Central Dogma editions in molecular biology (B) The initial four-node Central Dogma wiring diagram formed by DNA, mRNA, Protein and Activator. (C) The present-day seven-node Central Dogma wiring diagram formed by DNA, mRNA, Protein, Activator, miRNA, DegProtein and DegRNA. The directed edge “—o” represents a functional relationship with both activatory and inhibitory effects (D) Network representation of Boolean rules corresponding to the simple 1965 model. (E) Network representation of Boolean rules corresponding to the present-day updated model. For simplicity, the first version of each model is shown.