Related by context. Frequent words. (Click for all words.) 57 PrP 56 prion proteins 55 forelimb 55 FOXP2 54 IGF1 54 fibroblast cells 54 rhodopsin 54 Wnt signaling 53 dystrophin 53 neural cells 53 mouthparts 53 poxvirus 53 alanine 53 prion protein 53 synthetic genome 52 mutant protein 52 transposon 52 introns 52 ribozyme 52 pericardium 52 astrocyte 51 Notch signaling 51 protein fragment 51 amyloid deposits 51 receptor gene 51 photoreceptor 51 insulin receptors 50 intervertebral disc 50 genetically engineered mice 50 imprinted genes 50 genetic alteration 50 heterochromatin 50 porphyrins 50 amyloid fibrils 50 collagen fibers 50 misfolded 50 histone modifications 50 mice lacking 50 homolog 50 genomic instability 50 pancreatic cells 50 ribonucleic acid RNA 49 obestatin 49 RNA molecule 49 transgenic mouse 49 lamin 49 mutant flies 49 organelle 49 viral genome 49 DNA polymerase 49 helices 49 myoblasts 49 eukaryotic cells 49 mutant strains 48 genital organs 48 unfertilized egg 48 myelination 48 chromophore 48 knockout mice 48 lentivirus 48 mouse embryos 48 acetylation 48 theropod 48 thymine 48 melittin 48 fatty tissue 48 centrosome 48 nematode worms 47 zebrafish embryos 47 centromere 47 neural stem cells 47 mutant mice 47 Scar tissue 47 forelimbs 47 morphologic 47 RNA molecules 47 retinal cells 47 incisor 47 fluorescent molecules 47 intron 47 micelles 47 genetically altered mice 47 jaw muscles 47 iNOS 47 PPAR delta 47 maxillary 46 gonad 46 convergent evolution 46 retrovirus 46 flagellum 46 protein encoded 46 centrosomes 46 mammalian cells 46 translocations 46 testes 46 chloroplasts 46 transposons 46 exons 46 setae 46 outer membrane 46 biological molecules