Related by context. Frequent words. (Click for all words.) 59 destroying embryos 58 induced pluripotent stem iPS 58 SCNT 57 embryonic stem cells 56 somatic cell nuclear 55 embryonic cells 54 adult stem cells 54 induced pluripotent stem cells 54 cloned embryo 53 stem cells 52 curing diseases 52 therapeutic cloning 52 human embryos 52 stem cells derived 51 cloned embryos 50 cloning 50 cell transplantation 50 iPS 50 human embryonic stem 49 Embryonic stem cell 49 pluripotent stem cells 48 genetically modifying 48 reproductive cloning 48 embryonic stem cell 48 unfertilized egg 48 adult stem cell 48 Shinya Yamanaka 47 iPS cells 47 stem cell 47 embryo 47 human cloning 47 somatic cell 47 stem cell research 47 stem cell therapy 46 Stem cells 46 Wilmut 46 ethically acceptable 46 Embryonic stem cells 46 scientist Hwang Woo 46 iPS cell 46 Adult stem cells 46 DNA amplification 46 pluripotent 45 ESCR 45 human reproductive cloning 45 embryos 45 Cloning 45 ESCs 45 stem cell therapies 45 regenerative medicine 45 implanting 45 surgically removing 44 parthenogenesis 44 Human Embryonic Stem 44 bone marrow stem cells 44 plastination 44 Stem cell 44 leftover embryos 44 hESC 44 fetal tissue 43 Snuppy 43 regrowing 43 fertilized embryos 43 stem cell biology 43 fertilized egg 43 gene therapy 43 transgenic animals 43 stem cell differentiation 43 Hwang Woo suk 43 Tissue Engineering 42 reprogrammed cells 42 Jaenisch 42 iPSCs 42 blastocysts 42 cloned sheep 42 bone marrow transplantation 42 biomedical research 41 ovarian tissue 41 culturing 41 embryonic 41 oncolytic viruses 41 transgenic animal 41 allogeneic 41 Ian Wilmut 41 regenerative therapies 41 bone marrow stem cell 41 reparative 40 vitro fertilization IVF 40 genetically matched 40 terminating pregnancy 40 chimeras 40 zygote 40 mouse embryos 40 noninvasively 40 incurable diseases 40 vitro fertilization 40 recombinant DNA 40 unused embryos 40 Advanced Cell 40 ExAblate 40 cloned