31.   In fact, the specific gene mutations it monitored are harmless because they occurred in a gene unrelated to cancer.

32.   Knowing you have a particular gene mutation may mean you have an increased risk of a disease, but how big a risk?

33.   Medical science has been struggling to find the best way to treat such women and to determine who should be tested for the BRCA gene mutation.

34.   Such a treatment would help all races because it would give them the biological advantage now afforded only by the gene mutation, a U.S. scientist said.

35.   The discovery adds to a growing list of gene mutations linked to cancer.

36.   The connection between gene mutation and disease will become much clearer now, say the experts, with the mapping and sequencing of the entire human genome.

37.   Two other types of gene mutations have been shown to be protective in varying degrees in adults, and more may exist, he said.

38.   The study is the first to establish a direct link between the gene mutations and the prognosis of the ailment.

39.   The scientists identified a specific carcinogen in cigarettes that appears to cause a gene mutation found in most lung cancer tumors.

40.   Walhi said that, while the waste was not lethal, it could cause gene mutation and harm plants and animals.