Related by context. Frequent words. (Click for all words.) 75 human cloning 74 therapeutic cloning 67 cloning 63 human embryos 59 embryos 59 embryonic stem cells 59 embryo 58 embryonic stem cell 56 embryonic cells 56 stem cell research 54 Cloning 52 stem cell 51 human embryonic stem 50 adult stem cells 50 IVF 49 PGD 49 adult stem cell 49 iPS cells 49 HFEA 49 vitro fertilization 48 stem cells 48 fertilized egg 48 cloned animals 47 Stem Cell Research 47 frozen embryos 47 genetic modification 47 GMOs 46 surrogacy 46 genetically modified 46 cloned 46 infanticide 45 bioethics 45 transgenic 45 Human Fertilisation 44 fertility clinics 44 Bioethics 44 civil unions 44 fertility treatments 44 genetically engineered 44 euthanasia 43 commercial whaling 43 genetically altered 43 artificial insemination 43 genetically modified organisms 43 organ transplants 43 ethicists 43 Stem cell 43 biotech crops 43 genetically modified foods 42 stem cell therapy 42 eugenics 42 abortions 42 unborn 42 synthetic biology 42 genetically modified crops 42 primates 42 abortion 42 partial birth 41 genetically engineered crops 41 Euthanasia 41 biosimilars 41 gene therapy 41 embryonic 41 personhood 41 reproductive 40 legally binding treaty 40 incest 40 organ transplantation 40 regenerative medicine 39 legalized abortion 39 umbilical cord blood 39 homosexual couples 39 genetically modified GM 39 Advanced Cell 39 procreation 39 unborn babies 39 Stem Cell 39 sex marriages 39 fetuses 39 contraception 39 sex marriage 39 vaccines 39 homosexual acts 39 cord blood 39 fetus 38 reprocessing 38 pro lifers 38 clones 38 human beings 38 homosexuality 38 humans 38 heterosexual couples 38 assisted suicide 38 Abortion 38 cruel inhuman 38 gay marriage 37 scientific whaling 37 CITES 37 transplantation 37 infertility 37 biomedical research