Related by context. Frequent words. (Click for all words.) 72 cloning 72 therapeutic cloning 70 embryonic stem cell 69 human embryos 69 stem cell research 61 embryonic stem cells 58 human embryonic stem 57 embryo 56 stem cell 56 embryos 52 Stem Cell Research 51 Stem cell 50 abortion 50 adult stem cell 50 gay marriage 50 abortions 50 adult stem cells 49 bioethics 48 partial birth 48 vitro fertilization 48 genetically modified crops 47 sex marriage 47 embryonic 47 stem cells 46 Abortion 46 unborn 46 fertility treatments 45 cloned 45 biomedical research 45 commercial whaling 45 surrogacy 45 assisted suicide 45 genetically modified 45 euthanasia 44 regenerative medicine 44 IVF 44 contraception 43 genetically engineered 43 Bioethics 43 sex marriages 43 Stem Cell 42 legalized abortion 42 cloned animals 42 GMOs 42 creationism 42 gay marriages 41 civil unions 41 gene therapy 41 homosexuality 41 reproductive 41 biotechnology 41 incest 41 Intelligent Design 40 premarital sex 40 artificial insemination 40 organ transplants 40 pro lifers 39 constitutional amendment 39 Sen. Sam Brownback 39 infanticide 39 cures 38 Gay Marriage 38 masturbation 38 nanotechnology 38 contraceptives 38 constitutional amendment banning 38 biotech 38 legalizing 38 proposed constitutional amendment 37 transgenic 37 Frankenstein 37 criminalize 37 decriminalization 37 procreation 37 peaceful purposes 37 opposes abortion 37 emergency contraception 37 casino gambling 36 legalize gay marriage 36 ethical 36 fetus 36 scientific 36 Roe v. Wade 36 unborn child 36 uranium enrichment 36 fetuses 36 Geron 36 rape incest 36 cruel inhuman 35 immoral 35 Brownback 35 ultrasounds 35 marriage equality 35 fetal 35 GMO 35 enriching uranium 35 biological weapons 35 bestiality 35 patenting 35 contraceptive 35 homosexual