title: Storage of cell lysates for subsequent DNA analysis by the McGrath and Williams technique.
mesh_terms: D002499:Centrifugation, Density Gradient / Q000379:methods; D004269:DNA, Bacterial / Q000032:analysis*; D004355:Drug Stability; D004926:Escherichia coli / Q000032:analysis*; D008970:Molecular Weight
chemical_list: D004269:DNA, Bacterial