Related by context. Frequent words. (Click for all words.) 63 Bt toxin 59 Bt crops 58 transgenic plants 58 transgene 58 nonhuman primates 58 transgenes 58 Wolbachia 58 superweeds 56 transgenic 56 transgenics 56 mammalian species 55 genetic alteration 55 asexual reproduction 54 genetic variability 53 Genetic modification 53 Toxoplasma 53 Neu5Gc 53 transgenic corn 53 nematode worms 53 vertebrate animals 53 transgenic crops 53 Toxoplasma gondii 53 protozoan 53 fungal pathogens 53 transgenic animals 53 genetically manipulated 52 mice lacking 52 avian influenza viruses 52 simian immunodeficiency virus 52 mutant strains 52 enteroviruses 51 mycobacteria 51 PCV2 51 T. gondii 51 avian species 51 mice 51 mutant flies 51 organisms 51 bacterial pathogen 51 genotypic 51 adaptive immunity 51 neutralizing antibody 50 herpes viruses 50 bacterial strains 50 genetic modification 50 species 50 Bt maize 50 humans 50 Aedes aegypti 50 mycobacterium 50 Transgenic 50 defensins 50 pluripotent cells 50 C. albicans 50 mammals 49 Genetically modified 49 germline 49 L. monocytogenes 49 hepatocyte 49 viral vectors 49 mutant mice 49 mammalian 49 fibroblast cells 49 MON# 49 genetically modified mice 49 fruit flies 49 naturally occurring substances 49 genetic diversity 49 poxvirus 49 FLT3 49 microbial pathogens 49 rodents 49 iPS cells 49 genetically modified 49 rhesus macaques 48 bollworms 48 mutant strain 48 mole rats 48 RNA viruses 48 genetically engineered 48 microorganism 48 pathogen 48 hES cells 48 parasitism 48 Plasmodium 48 Varki 48 ESTs 48 symbionts 48 neural cells 48 organism 48 antibiotic resistance genes 48 genetically altered 48 genotypes 48 rootworm 48 bioactivity 48 ES cells 48 diploid 48 secreted proteins 48 gene 48 IAPV 48 sticklebacks