Figure 1From: Empirical demonstration of environmental sensing in catalytic RNA: evolution of interpretive behavior at the origins of lifeExample payoff matrix for interpretive behaviour. Payoff values O1–O4 are evaluated for each pair-wise combination of environmental conditions and genotype traits as discussed in the text. The ion concentrations refer to those used in the assays of the Tetrahymena ribozyme, as described in Figures 2, 3 and 4.Back to article page