Only one became pregnant, and she delivered Dolly, who was named, by the way, for country western singer Dolly Parton. Cloning has long been a staple of science fiction. The dinosaurs in Jurassic Park were cloned from bits of DNA kept alive in tree sap, and in Brave New World , Aldous Huxley wrote about the production of humans and animals. And American researchers created copies of human embryos in 1993. But those embryos were not viable, and most scientists thought copying an animal was impossible until Dolly was born.
Some scientists envision great benefits from cloning.
They say animals could be created to produce proteins some humans lack, like the clotting factor in human blood. Cloned animals could also produce human medicines in their milk. But Wilmut drew the line at cloning humans. We think it s important to prohibit the misuses. We would share the concerns that this technique should not be used in human beings but also to make sure that we are able to use it for the purposes where there is a benefit.