title: Physical mapping of the early region of bacteriophage T7 DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D002852:Chromatography, Ion Exchange; D002874:Chromosome Mapping; D003090:Coliphages / Q000032:analysis*; D004270:DNA, Circular / Q000032:analysis; D004277:DNA, Single-Stranded / Q000032:analysis; D004279:DNA, Viral / Q000032:analysis*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology; D005815:Genetic Code; D008854:Microscopy, Electron; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D012367:RNA, Viral / Q000032:analysis; D013997:Time Factors; D014158:Transcription, Genetic; D014764:Viral Proteins / Q000032:analysis
chemical_list: D004270:DNA, Circular; D004277:DNA, Single-Stranded; D004279:DNA, Viral; D012367:RNA, Viral; D014764:Viral Proteins; D012321:DNA-Directed RNA Polymerases