Summary
By PAUL ELIAS THE ASSOCIATED PRESS
SAN FRANCISCO - Scientists have genetically engineered a dozen cows to be free from the proteins that cause mad cow disease, a breakthrough that may make the animals immune to the brain-wasting disease.See the full content of this document
Extract
Engineered Genes Resist Mad Cow Disease
An international team of researchers from the U.S. and Japan reported Sunday that they had "knocked out" the gene responsible for making the proteins, called prions. The disease didn't take hold when brain tissue from two of the gene...
See the full content of this document
Sponsored links
