title: Bacteriophage T4 head morphogenesis: host DNA enzymes affect frequency of petite forms.
mesh_terms: D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000254:growth & development* / Q000378:metabolism; D004254:DNA Nucleotidyltransferases / Q000502:physiology*; D004260:DNA Repair; D004267:DNA Viruses; D004279:DNA, Viral / Q000032:analysis / Q000096:biosynthesis; D004720:Endonucleases / Q000502:physiology*; D004926:Escherichia coli / Q000201:enzymology; D005796:Genes; D008854:Microscopy, Electron; D008954:Models, Biological; D009024:Morphogenesis
chemical_list: D004279:DNA, Viral; D004254:DNA Nucleotidyltransferases; D004720:Endonucleases