Morphological features of the pili associated with Escherichia coli K 12 carrying R factors or the F factor.
D003090:Coliphages / Q000378:metabolism*; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000166:cytology* / Q000378:metabolism; D005407:Flagella; D008854:Microscopy, Electron; D008967:Molecular Biology