title: Some morphological properties of P4 bacteriophage and P4 DNA.
mesh_terms: D003090:Coliphages / Q000032:analysis / Q000254:growth & development / Q000302:isolation & purification; D004279:DNA, Viral / Q000032:analysis / Q000302:isolation & purification; D004926:Escherichia coli; D005796:Genes; D005827:Genetics, Microbial; D006378:Helper Viruses / Q000032:analysis / Q000302:isolation & purification; D008242:Lysogeny; D008854:Microscopy, Electron; D013194:Staining and Labeling; D014764:Viral Proteins
chemical_list: D004279:DNA, Viral; D014764:Viral Proteins