Thanks, Maryse and Ray. I had not idea. Things seem to be getting even more complex in this kind of research. Whew. ----------- Mary Ann (CG Jamie 65/25 with PD) > The immaculate conceptions are embryos developed from 2 mothers. Hwang > does > NT or nuclear transfer, an unfertilized egg and one's own DNA. ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn