bert, oddly enough we do need cloned sheep. A rare number of sheep produce an enzyme that is necessary for the production of medicine for people who have Cystic Fibrosis. At the moment when one of these sheep pass away, hundreds of sheep need to be tested to find 1 that can replace it. The sheep is not harmed or killed to produce the medicine. That's why the wool from the first sheering of Dolly was used to knit a sweater to be auctioned to raise money for CF research.

Cystic fibrosis (CF) is the number-one genetic killer of children and young adults in the U.S. One in 29 Americans -more than 10 million people- is an unknowing, symptomless carrier of the defective gene that causes CF. This gene causes the body to produce an abnormally thick, sticky mucus. This abnormal mucus leads to chronic and fatal lung infections and impairs digestion. Currently, there is no cure for the 30,000 individuals with CF.