Related by context. Frequent words. (Click for all words.) 53 SCNT 53 fetal tissue 53 ethical 52 morally acceptable 51 somatic cell nuclear 50 therapeutic cloning 50 unethical 50 morally objectionable 50 embryo 49 ethically 49 destroying embryos 48 human embryos 48 embryos 48 ethicists 47 embryonic stem cells 47 reproductive cloning 47 stem cells derived 46 embryonic cells 46 cloned embryo 46 intrinsically evil 45 Embryology Authority 45 morally wrong 45 fertilized embryos 45 ESCs 45 adult stem cells 44 assisted reproduction 44 Embryonic stem cell 44 morally repugnant 44 bioethicists 44 ethical considerations 44 cloned embryos 44 abortifacient 44 human cloning 43 stem cells 43 immoral 43 cell transplantation 43 Ethically 43 acceptable 43 morally unacceptable 43 Adult stem cells 43 oocytes 43 pluripotent stem cells 43 iPSCs 43 gametes 42 PGD 42 transgenic animals 42 oocyte 42 allogeneic 42 ES cells 42 embryonic stem cell 42 chimeras 42 morally questionable 41 HFEA 41 mesenchymal stem cells 41 iPS 41 Embryo 41 aneuploidy 41 aberrant 41 parthenogenesis 41 autograft 41 morally 41 ESCR 41 vitro fertilization 41 invasive procedure 41 chemical castration 41 adult stem cell 41 hESCs 41 IVF 41 cloning 40 morally justified 40 ovarian tissue 40 autologous 40 ethical dilemma 40 vitro fertilization IVF 40 stem cell 40 infertile couples 40 islet cell 40 morally reprehensible 40 genetic manipulation 40 efficacious 39 curing diseases 39 procreative 39 immunosuppressant drugs 39 induced pluripotent stem cells 39 bioethicist 39 therapeutically 39 eugenic 39 abortion euthanasia 39 ova 39 iPS cells 39 invasive procedures 39 legally permissible 39 altruistic 39 informed consent 38 stem cell therapy 38 fertility 38 stem cell transplantation 38 assisted reproductive 38 somatic cells 38 socially acceptable 38 donor sperm