A protein-coding gene named X is activated by MyoD, and is expressed in muscle cells but not in liver cells. Draw two schematics of gene X: one schematic of gene X in liver cells and a second schematic of gene X in muscle cells. Your gene X must have three exons, a basal promoter, and a MyoD-dependent enhancer placed 2,000 bases upstream of the transcription start site. Indicate in schematic I: the binding patterns of MyoD, basal transcription factors, mediator proteins, and polymerase on this gene in in a liver cell and in a muscle cell , schematic II. Show when or if genes are transcriptionally active or not.