title: Studies on Escherichia coli sex factors. IV. Molecular weights of the DNA of several F' elements.
mesh_terms: D000468:Alkalies; D002501:Centrifugation, Zonal; D003090:Coliphages; D004269:DNA, Bacterial / Q000032:analysis* / Q000528:radiation effects*; D004926:Escherichia coli; D005260:Female; D005827:Genetics, Microbial; D008970:Molecular Weight; D009691:Nucleic Acid Denaturation; D011830:Radiation Effects; D012737:Sex Factors
chemical_list: D000468:Alkalies; D004269:DNA, Bacterial