81.   Most people with the disease are simply carriers of the thalassemia trait, meaning they suffer few or no symptoms but carry the gene.

82.   Researchers hoped to correct the problem by injecting into his liver a cold virus that had been modified to carry a gene that would control the condition.

83.   Researchers said he died because the protein used to carry new genes into his damaged liver triggered a major immune system response.

84.   Some people carry the gene but never develop severe symptoms of the disease, which mainly affects Southeast Asians and people from the Mediterranean.

85.   The defective gene is carried by women, but the disease almost always strikes young boys.

86.   The injection contained a cold virus modified to carry genes for a muscle protein Decker was missing because of a genetic flaw.

87.   The experiment shows that it may be possible to one day grow fruit or vegetables that carry vaccination genes against other diseases, he said.

88.   The therapies usually use a virus to carry genes into the tumor, an approach that has two problems.

89.   The viruses would carry the gene into muscle cells during the angioplasty and keep them from dividing.

90.   The vaccine consists of a harmless canary pox virus that is genetically engineered to carry several genes that make HIV proteins.