<prompt> To synthesize insulin on a large scale basis, the most suitable staing material obtained from the beta cells of the pancreas isGenomic DNATotal cellular RNAcDNA of insulinmRNA of insulin  <response>: the mRNA act as messenger transpoing the information in the gene in DNA to the protein synthesizing machinery in the cytoplasmRef: DM VASUDEVAN, 7th edition, page no: 558 