The work initiated by American scientists has raised ethical concerns because it involves taking stem cells from human embryos that are (1)_______________________.
Oregon approves the "therapeutic cloning", making it possible for researchers at Oregon Health & Science University in Portland to (2)_______________________________. And the embryos they created could actually develop into (3)______________________________ .
Scientists believe they could produce a personalized treatment for patients with Parkinson's disease, a degenerative (5) ___________________________.
Alta Charo believes she is obliged to help sick peoplewho are in need of trans-political concerns, and public relations, and perception problems around the very first two or three days (5)_____________________________________.