title: Presence of two DNA populations in Mycoplasma laidlawii.
mesh_terms: D002499:Centrifugation, Density Gradient; D002876:Chromosomes, Bacterial; D003596:Cytosine / Q000032:analysis; D004269:DNA, Bacterial / Q000032:analysis; D006147:Guanine / Q000032:analysis; D008970:Molecular Weight; D009174:Mycoplasma / Q000032:analysis*; D012964:Sodium; D013395:Sucrose; D013431:Sulfates; D013501:Surface-Active Agents; D013941:Thymine; D014316:Tritium
chemical_list: D004269:DNA, Bacterial; D013431:Sulfates; D013501:Surface-Active Agents; D014316:Tritium; D013395:Sucrose; D006147:Guanine; D003596:Cytosine; D012964:Sodium; D013941:Thymine