Summary: Scientists have shown that they can create fertile eggs from "pluripotent" skin stem cells—cells that can form into any type of embryonic cell. The potential for this kind of regenerative medicine could also help treat diseases. For example, stem cells can now restore healthy bone marrow in leukemia patients. <a href="http://medicine.utah.edu/faculty/mddetail.php?facultyID=u0031449">Dr. Kirtly Parker Jones</a> talks about the many interesting scientific—and ethical—questions emerging from this area of stem cell research.
