[Analysis by density gradient centrifugation of DNA of E. coli K 12 lacking thymine].
D002499:Centrifugation, Density Gradient; D004269:DNA, Bacterial / Q000032:analysis / Q000096:biosynthesis*; D004926:Escherichia coli / Q000378:metabolism*; D013941:Thymine / Q000172:deficiency*
D004269:DNA, Bacterial; D013941:Thymine
Analyse par centrifugation en gradient de densité de l'ADN d'E. coli K 12 carencé en thymine