title: Dislodgement and thymineless elimination of N-group plasmids.
mesh_terms: D004269:DNA, Bacterial; D004926:Escherichia coli / Q000235:genetics* / Q000302:isolation & purification; D011815:R Factors; D013941:Thymine / Q000378:metabolism*
chemical_list: D004269:DNA, Bacterial; D013941:Thymine