Related by context. Frequent words. (Click for all words.) 64 SCNT 62 therapeutic cloning 61 human embryos 60 Embryonic stem cell 60 embryonic stem cell 60 embryonic stem cells 59 cloned embryo 59 cloned embryos 59 stem cell 59 stem cell research 58 leftover embryos 58 embryos 57 fertilized embryos 56 embryo 56 human embryonic stem 56 stem cells 56 somatic cell nuclear 55 transgenic animals 55 hESC 55 Embryos 54 embryonic cells 54 reproductive cloning 53 Embryology Authority 53 Stem Cell Research 53 Embryonic Stem Cell 53 stem cells derived 52 human cloning 52 ESCs 52 gametes 52 adult stem cells 52 Human Embryonic Stem 52 destroying embryos 51 hESCs 51 federally funded embryonic stem 51 fertilized eggs 51 Embryology Authority HFEA 51 Embryology Bill 51 pluripotent stem cells 50 Stem cell 50 fetal tissue 50 Embryo 50 Human Fertilisation 50 iPS cell 50 ESCR 50 iPSCs 50 HFEA 50 chimeras 49 ES cells 49 Adult stem cells 49 adult stem cell 48 Stem Cell 48 embryology 48 Embryonic stem cells 47 embryonic 47 cloning 47 Cloning 47 iPS cells 47 pluripotency 47 Cord blood 46 stem cell therapies 46 reprogrammed cells 46 genetically engineered 46 Human Tissue 46 oocytes 46 Mesoblast 46 Roslin Institute 46 fertilized egg 45 zebra fish 45 cell transplantation 45 fertility clinics 45 IVF clinics 45 genetically modified 45 induced pluripotent stem cells 45 mouse embryonic stem 45 Tissue Engineering 44 biobank 44 somatic cells 44 ReNeuron 44 frozen embryos 44 blastocyst 44 Embryology 44 pancreatic cells 44 blastocysts 44 hematopoietic 43 Stem Cells 43 iPS 43 umbilical cords 43 umbilical cord blood 43 Stem cells 43 Fertility Society 43 stem cell biology 43 mouse embryos 43 genetically altered 43 transgenic mice 43 oocyte 43 biomedical research 43 human neural stem 43 recombinant DNA 43 transgenic plants 42 transgenic 42 Geron Corporation