Related by context. Frequent words. (Click for all words.) 49 somatic cells 48 cloned embryo 47 embryonic cells 45 germ cells 45 male 45 genetically identical 45 iPS cells 45 induced pluripotent stem cells 45 oocytes 44 female 44 parthenogenesis 43 reproductive biology 43 testes 43 pluripotent stem cells 43 oocyte 43 embryonic stem cells 43 genistein 42 sperm 42 ovulate 42 embryo 42 mouse embryos 42 transgenic 42 hermaphrodites 42 stem cells 42 zygote 42 Wolbachia 41 ovary 41 embryologist 41 cloned embryos 41 females 41 somatic cell nuclear 41 embryos 41 blastocysts 41 destroying embryos 40 Shinya Yamanaka 40 blastocyst 40 rhesus monkeys 40 spermatozoa 40 ES cells 40 bone marrow stem cells 40 inseminated 40 pluripotent 40 SCNT 40 gene expression patterns 40 mesenchymal stem cells 40 mouse embryonic stem 40 fertilized egg 40 chimeric 39 ESCs 39 ovaries 39 therapeutic cloning 39 nonhuman primates 39 egg 39 iPSCs 39 ovum 39 prolactin 39 reprogrammed cells 39 iPS 39 Afghan hound 39 chimeras 39 adiponectin 39 undergoing IVF 39 inseminate 39 Embryonic stem cells 39 pluripotency 39 X chromosomes 39 meiosis 39 embryonic 38 mammary gland 38 testis 38 fertilized eggs 38 males 38 zebrafish 38 Fertility Society 38 matings 38 adult stem cells 38 aneuploidy 38 hermaphrodite 38 genetically 38 iPS cell 38 Human Embryonic Stem 38 genetically manipulated 38 cloned 38 fetal tissue 38 ovarian 37 placentas 37 reproductive 37 vasopressin 37 Embryology 37 zebra fish 37 neural stem cells 37 progenitor cell 37 reproductive tract 37 rhesus macaques 37 Garvan Institute 37 HSCs 37 ovulating 37 Wilmut 37 donor sperm 37 geneticists 37 stromal cells