31.   Apparently, a yen for privacy is a genetic trait in the Salinger clan.

32.   And recent studies suggest a genetic trait linked to protection from nicotine addiction may be missing in Africans, he said.

33.   Cloning is being eyed for dairy and beef cattle to reproduce the genetic traits that make those animals commercially valuable.

34.   Its genetic model is relatively simple and so similar to other grains that scientists can use the rice map to manipulate genetic traits in a variety of crops.

35.   Previously, only seeds were safeguarded to preserve genetic traits of individual plants.

36.   That left the Carews facing astronomical odds of finding someone with similar genetic traits outside the family.

37.   The genetic trait also may be a major risk factor for fatal heart attacks and blood clots in the heart in early middle age, the study found.

38.   The same technique that renders seeds sterile by turning certain genetic traits on and off also could be used to make plants resistant to drought or pests.

39.   The rice genome provides a road map for altering genetic traits of corn and wheat, crops also descended from wild grasses.

40.   The same method can be used to introduce other desired genetic traits.