title: Genetic and physical mapping in the early region of bacteriophage T7 DNA.
mesh_terms: D001483:Base Sequence; D002872:Chromosome Deletion; D002874:Chromosome Mapping; D004262:DNA Restriction Enzymes / Q000378:metabolism; D004279:DNA, Viral; D004591:Electrophoresis, Polyacrylamide Gel; D012367:RNA, Viral; D011995:Recombination, Genetic; D013604:T-Phages / Q000235:genetics*; D014764:Viral Proteins / Q000032:analysis
chemical_list: D004279:DNA, Viral; D012367:RNA, Viral; D014764:Viral Proteins; D004262:DNA Restriction Enzymes