title: Deletion analysis of two nonessential regions of the T4 genome.
mesh_terms: D000251:Adenosine Triphosphatases / Q000096:biosynthesis; D002874:Chromosome Mapping; D003090:Coliphages / Q000032:analysis / Q000201:enzymology / Q000254:growth & development / Q000378:metabolism / Q000528:radiation effects / Q000648:ultrastructure; D003433:Crosses, Genetic; D004267:DNA Viruses; D004279:DNA, Viral / Q000032:analysis; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli; D005092:Exonucleases / Q000096:biosynthesis; D005796:Genes; D008040:Genetic Linkage; D008854:Microscopy, Electron; D009154:Mutation; D009690:Nucleic Acid Conformation; D010744:Phosphoric Monoester Hydrolases / Q000096:biosynthesis; D011830:Radiation Effects; D014466:Ultraviolet Rays; D014764:Viral Proteins / Q000096:biosynthesis
chemical_list: D004279:DNA, Viral; D014764:Viral Proteins; D005092:Exonucleases; D010744:Phosphoric Monoester Hydrolases; D000251:Adenosine Triphosphatases