title: The maintenance and propagation of plasmid genes in bacterial populations. The Sixth Fleming Lecture.
mesh_terms: D002876:Chromosomes, Bacterial; D003227:Conjugation, Genetic; D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000235:genetics*; D005798:Genes, Bacterial; D010957:Plasmids; D011815:R Factors
chemical_list: D004251:DNA Transposable Elements; D004269:DNA, Bacterial