RNA Polymerase Melts DNA at the Promoter-Figures 6.15 and 6.16

This is a video that explains how S1 mapping was used to determine the size of the melted promoter when RNAP binds. It is described in figures 6.15 and 6.16 in Molecular Biology 5th edition by Robert Weaver. This video was made for MCDB 427 at the University of Michigan.