You have set up a system of differential equations to describe the concentration of a protein as a function of time based on transcription, translation, and degradation rates. You simulate two conditions (1 and 2) that are identical except that the transcription rate for the protein is set tenfold higher in one of them (1) compared to the other (2). Starting from a concentration of zero, the time required to reach 50% of the final steady-state concentration is …