Does anyone know whether the P1 vectors used for the Drosophila genome project contain sequences that light up when probed with standard lab cloning vectors such as pUC and Bluescript? Cahir c.okane at gen.cam.ac.uk -- Cahir O'Kane, Dept of Genetics, Downing St., Cambridge, CB2 3EH, UK cok at mole.bio.cam.ac.uk