CGS-authored
Dolly changed the public's idea of what biotechnology might do and immediately posed the question: Can human clones be far behind?
"Dolly was important as a symbol of science gone out of control," says Arthur Caplan, director of the Center for Bioethics at the University of Pennsylvania. "People were very afraid of cloning and what it might mean in terms of genetic engineering."
A decade later, those concerns and speculations have cooled. Cloning, it turns out, is a difficult proposition. Dolly was the sole survivor among 277 attempts to clone a sheep. Human cloning has proved...