Related by context. Frequent words. (Click for all words.) 61 neural cells 60 pluripotent cells 60 reproduce asexually 59 mesenchymal cells 59 multicellular organisms 58 teratoma 58 undifferentiated cells 58 motile 57 teratomas 57 haploid 56 neural tissue 56 hematopoietic cells 56 fibroblast cells 55 basal cells 55 unicellular 55 multicellular 55 mesenchymal 55 embryonic stem ES 55 germ cells 55 engrafted 54 methylation patterns 54 biogenesis 54 iPSC 54 morphologically 54 hES cells 54 flatworms 54 somatic cells 54 centrosomes 54 prokaryotic 53 amyloid fibrils 53 organelle 53 amino acid sequences 53 Xenopus 53 mouse embryos 53 Nanog 53 progenitor cells 53 eukaryotic cells 53 PrP 53 unfertilized egg 53 evolutionarily conserved 52 ribonucleic acid RNA 52 erythrocytes 52 rDNA 52 pluripotent 52 fibroblast 52 chondrocytes 52 neuronal cells 52 pluripotent stem cells 52 defensins 52 Langerhans cells 52 pluripotency 52 mesoderm 52 mutant proteins 52 diploid 51 somatic cell 51 cells hESCs 51 myoblasts 51 organism 51 Hox genes 51 ES cells 51 metastatic tumor 51 germline 51 embryogenesis 51 oligodendrocytes 51 Oct4 51 chromatin structure 51 iPSCs 51 mice lacking 51 pancreatic cells 51 stromal cells 51 Macrophages 51 genetically engineered mouse 51 Amino acids 51 Rad# 51 CD# + [001] 51 epithelia 51 ribozyme 51 morphogenesis 51 pancreatic tissue 51 Stat5 51 micro RNAs 51 hematopoietic stem cells 51 mouse embryo 51 transgenic mouse 51 fluorescently labeled 51 oncoprotein 51 retinal pigment epithelium 51 chimeric 51 plasmodium 51 epididymis 51 organelles 51 nonliving 50 transplanted stem cells 50 Tumor cells 50 vertebrate animals 50 NKT cells 50 genetic alteration 50 oviduct 50 retinal cells 50 Prions 50 HSCs