title: Method for assessing the frequency of transfer of an R factor on solid media and for isolating cells of the donor type from a predominantly repressed culture.
abstract: A method for assessing the incidence of R factor transfer on solid media is described. The method gives values similar to those obtained with conventional techniques but allows the derepressed cells from a predominantly repressed population to be isolated.
mesh_terms: D003470:Culture Media; D004352:Drug Resistance, Microbial; D004926:Escherichia coli; D005827:Genetics, Microbial; D008722:Methods
chemical_list: D003470:Culture Media