Got Cloned Milk?
But citing the sudden death of a cloned cow at the University of Tennessee earlier this month, University of Pennsylvania bioethicist Art Caplan, PhD, tells WebMD, "There are all kinds of signals that there are real biological problems with the health of clones."
"That's what we are up against," Says Gillespie. "Everybody is ready to believe that there was something [wrong with the clone]. I haven't seen anything from the University of Tennessee to judge that the animal died from anything other than some natural cause."
Meanwhile, companies are also interested in genetically modified clones, once they work out all the kinks with "simple" cloned animals.
For example, Infigen says that it is experimenting with genetically modified cattle to help produce useful pharmaceutical proteins and to make a blood clotting factor that the American Red Cross hopes to commercialize. It is also cloning genetically modified pigs to possibly use their organs as replacement organs in humans.
"That's where we'll no doubt spend a lot of time, effort, and money -- getting those approved," Gillespie says.