title: Screening colonies or plaques with radioactive nucleic acid probes.
mesh_terms: D010582:Bacteriophage lambda / Q000235:genetics; D003001:Cloning, Molecular / Q000379:methods*; D004247:DNA / Q000302:isolation & purification*; D004926:Escherichia coli / Q000235:genetics; D007202:Indicators and Reagents; D009693:Nucleic Acid Hybridization; D010761:Phosphorus Radioisotopes; D010957:Plasmids; D011865:Radioisotope Dilution Technique; D010948:Viral Plaque Assay
chemical_list: D007202:Indicators and Reagents; D010761:Phosphorus Radioisotopes; D004247:DNA