1.   Even so, Waltz and other researchers maintain they are uncovering important clues about how the flawed genes do their dirty work.

2.   Flawed genes result in deficiencies in specific enzymes, and the lack of those enzymes allows toxic chemicals to build up in the blood.

3.   Proteins that slash appetites, molecular receptors that signal fullness to the brain, fat-burning hormones, flawed genes that regulate how fast calories are burned.

4.   Those with a flawed gene tend to develop potbellies or develop diabetes earlier in adulthood.

5.   What if one of those factors is stress, a sure result of knowing you carry a flawed gene?

6.   What is common to all these diseases is an abnormal repetition of three letters in the DNA code of the flawed gene.

7.   And scientists are scrambling to figure out just how the flawed gene causes trouble.

8.   DeKosky and Kamboh found that in the presence of a second set of flawed genes, the risk triples.

9.   German scientists say they have identified a flawed gene that might be making a form of schizophrenia run in a large family.

10.   In each group, they found subtle but consistent links between the flawed gene and a tendency toward obesity and the adult form of diabetes.