The children could have serious health consequences — either early or later in life — having been generated, after all, from two broken eggs.
Shelley’s cautionary tale of a scientific experiment run amok has profound implications for today’s bioethics debates.
The successful births came from DNA taken from fetal, not adult, cells. That is the usual course in this research.
Scientists are making human “embryos” — cell formations that are not viable organisms — from stem cells, but which may be a step before making human organisms.