Related by context. Frequent words. (Click for all words.) 51 ancestor 51 Homo sapiens 50 Homo Sapiens 50 genetic abnormality 49 Y chromosome 49 Neandertals 48 Neandertal 47 Beringia 47 mtDNA 47 H. erectus 47 anthropoids 47 Y chromosomes 47 gene mutation 47 genus Homo 46 Ardipithecus 46 Australopithecus 46 common ancestor 46 mitochondrial genome 46 lineages 46 genetic mutations 46 Methuselah 45 lineage 45 haplotypes 45 hominins 45 monkeys apes 45 clades 45 susceptibility gene 45 genetic defect 45 tyrannosaur 45 vertebrate species 45 progenitors 45 Ashkenazi Jews 45 carnivorous dinosaurs 45 tetrapods 45 hominids 45 ancestry 45 coelacanth 45 prokaryotes 45 archaea 44 Tiktaalik 44 chromosome abnormalities 44 X chromosome 44 feathered dinosaurs 44 mutated gene 44 imprinted genes 44 genetically inherited 44 Denisovans 44 APOE4 44 hominid 44 mutation 44 mitochondrial DNA 44 mutated genes 44 Neanderthal 44 tyrannosaurs 44 ancestors 44 Mitochondrial DNA 44 genetic mutation 44 prion disease 44 wooly mammoth 44 genetic alteration 43 recessive gene 43 progenitor 43 ApoE4 43 Otzi 43 interbred 43 heritable 43 planet Krypton 43 phylogeny 43 simian immunodeficiency virus 43 evolutionary biologists 43 FOXP2 43 firstborn 43 taxa 43 protozoan 43 classical antiquity 43 Australopithecus afarensis 43 supercontinent 42 Tyrannosaurus 42 Homo 42 Neanderthals 42 amino acid sequences 42 polyandry 42 supercentenarians 42 BRCA1 gene 42 pterosaur 42 BRCA2 gene 42 Archaeopteryx 42 asexual reproduction 42 Homo habilis 42 LB1 42 mutant gene 42 morphologically 42 chromosomal abnormalities 42 retrovirus 42 aneuploidy 42 multicellular organisms 42 Neanderthal DNA 42 Fertile Crescent 42 flagellum 42 millenia 42 Wolbachia