Senior scientists Marilena Aquino de Muro and Ralph Rapley have brought together an outstanding collection of time-tested prools for designing and using genes probes in a wide variety of applications. The applications covered range from searching for specific genes in the human chromosome to the detection of microorganisms and their toxins in the environment and in food samples, as well as in the diagnosis of human disease. Helpful tutorials explain the principles of gene probe design, labeling, detection, target formation, and hybridization conditions.