8. Consider the following diagram of a segment of eukaryotic chromosomal DNA. The filled boxes denote DNA encoding exons, and the hollow boxes denote DNA encoding introns; the central horizontal line separates the two strands of the double helical DNA. In a series of cartoons, sketch the events that occur before the fully mature mRNA encoded by this DNA arrives in the cytoplasm for translation into a protein. Include capping, splicing, poly-adenylation, and transcription (which do not occur in that order). Explicitly denote which steps occur in the nucleus and which occur in the cytoplasm. .