51.   The gene, developed by Demegen, which is based in Pittsburgh, produces a protein that kills bacteria.

52.   The old idea that one gene produces one protein that makes something happen in the body is on the way out.

53.   The most recent breakthrough was a project to alter rice so that it would produce the protein necessary to create vitamin A in its grain.

54.   The presence of a disease can cause the cell to produce harmful proteins.

55.   The process should also cut down on the purification process, which contributes substantially to the cost of producing such proteins.

56.   The researchers used DNA analysis, and tricked bacteria into producing the proteins in the mussel tether.

57.   The scientists have genetically altered a bacterium that resides inside the bug to produce a protein that fatally punches holes in the parasite.

58.   The Scottish biotech firm that produced Dolly has cloned several more lambs, it announced Thursday, one of them genetically altered to produce human proteins in its milk.

59.   The seeds are spliced with a gene that produces protein naturally made from strains of bacterium called Bacillus thuringiensis.

60.   The StarLink corn is engineered to insert a gene that produces a protein lethal to the corn borer, a common pest.