Consider a Transcription Regulatory Protein (A) That Can Bind to the Promoter

Multiple Choice

Consider a transcription regulatory protein (A) that can bind to the promoter (p) of a target gene. After reaching an initial steady state, the concentration of A is suddenly increased tenfold. The following graph shows the formation of A:p over time after this change. What is the slope of the curve at time zero?

A) 2 kₒff
B) 2 kₒn
C) 5 kₒff
D) 5 kₒn
E) 9 kₒff