Fig. 5

Venn diagram partitions representing different interactions among the regulatory genes influencing the target T. Each partition either exists or does not exist in the corresponding f_i(G₁, G₂, …, G_k) of the logic function. aG₁ regulates T. Each partition, i.e., G₁ and \( \overline{G_1} \) of the Venn diagram, is possibly on or off in f_i(G₁). b Both genes G₁ and G₂ regulate T. The Venn diagram is partitioned into 4 disjoint regions; each is potentially on or off in f_i(G₁, G₂). c Genes G₁, G₂ and G₃ regulate T. The Venn diagram is partitioned into 8 disjoint regions; each is potentially on or off in f_i(G₁, G₂, G₃)