41.   Some of them, in fact, seem to be appealing directly to an anti-intellectual strain that political scientists have long identified in the American electorate.

42.   Suppose scientists identify two susceptibility genes for alcoholism.

43.   The key to the method is a cancer-causing genetic defect in human cells, identified by scientists at Johns Hopkins University about seven years ago.

44.   The scientists identified a bacterial gene that produces an enzyme that breaks down TNT into harmless components.

45.   The scientists have already identified a few unusual traits of the parrots that must be studied before decisions can be made about protecting their habitat.

46.   The scientists identified key genes that govern cellular growth and, when they go awry, can lead to cancer.

47.   The scientists later identified an even more resistant variety, which they called Valley Forge, by selecting the hardiest offspring of disease-resistant elms over four generations.

48.   Thermal photographs taken by the pilot allow scientists to identify algae blooms and other irregularities, and Baywatch volunteers then collect water samples and readings for laboratory analysis.

49.   This process, called subtractive hybridization, enables scientists to identify, and later to clone the fragments that differentiate the two species.

50.   Those are just a few examples of the kinds of nutrients scientists have identified in fruits and vegetables that are proving to be powerful agents of health.