title: Preparation of large oligonucleotides from high molecular weight ribonucleic acid.
mesh_terms: D001412:Bacillus subtilis / Q000201:enzymology; D002845:Chromatography; D003090:Coliphages; D009711:Nucleotides / Q000032:analysis*; D012367:RNA, Viral; D012260:Ribonucleases
chemical_list: D009711:Nucleotides; D012367:RNA, Viral; D012260:Ribonucleases