Egg Breakthrough Could Shift Debate on Stem Cells, Cloning University of Pennsylvania scientists report news that could revolutionize the world of cloning and stem-cell research. They say they have created eggs in a petri dish. Hear from NPR's Joe Palca, NPR's Robert Siegel and Thomas Murray, president of the Hastings Center, a bioethics research organization.
NPR logo Egg Breakthrough Could Shift Debate on Stem Cells, Cloning

Egg Breakthrough Could Shift Debate on Stem Cells, Cloning

University of Pennsylvania scientists report news that could revolutionize the world of cloning and stem-cell research. They say they have created eggs in a petri dish. Hear from NPR's Joe Palca, NPR's Robert Siegel and Thomas Murray, president of the Hastings Center, a bioethics research organization.