title: Isolation and physical mapping of T7 gene 1 messenger RNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000032:analysis*; D004277:DNA, Single-Stranded; D004279:DNA, Viral; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli; D005796:Genes; D005827:Genetics, Microbial; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization; D010759:Phosphorus Isotopes; D012333:RNA, Messenger / Q000302:isolation & purification*; D012367:RNA, Viral / Q000302:isolation & purification*
chemical_list: D004277:DNA, Single-Stranded; D004279:DNA, Viral; D010759:Phosphorus Isotopes; D012333:RNA, Messenger; D012367:RNA, Viral