<prompt> 7-Methyl guanosine cap is present inM-RNAt-RNAr-RNADNA  <response>: Eukaryotic mRNA synthesis results in a pre-mRNA precursor that contains extensive amounts of excess RNA introns that must be precisely removed by RNA splicing to generate functional, translatable mRNA composed of exonic coding and 5 and 3 noncoding sequences. All steps--from changes in DNA template,Ref: Harpers Illustrated Biochemistry, 30th edition, page no: 