2) The Y regulator in an OR-gate C1-FFL is often positively autoregulated. a) Plot the dynamics of a C1-FFL with positive autoregulation of Y and an OR input function at the Z promoter. Assume ON step of Sx at t = 0 that activates X, so Y transcription starts at t = 0 OFF step of Sx at t = toff Weak positive autoregulation of Y (By