Related by context. Frequent words. (Click for all words.) 65 X chromosome 62 mitochondrial DNA 60 chromosomal 59 mutation 58 genetic 56 chromosome 55 chromosomes 55 genetic variant 55 gene 54 mutations 54 genes 54 genetic mutations 53 gene mutation 53 alleles 52 DNA 51 genetically 51 genetic variation 51 genetic mutation 51 mutated gene 51 lineages 49 Homo sapiens 49 human genome 48 defective gene 48 genetic markers 48 methylation 48 allele 48 lineage 48 gene variant 48 genome 48 genetic makeup 48 Neanderthal 48 genomes 47 genetic abnormalities 47 ancestor 47 polymorphism 46 genetic variations 46 DNA sequences 46 genetic defect 46 Neanderthals 46 common ancestor 46 BRCA1 46 BRCA2 46 genetic variants 46 gene mutations 45 genetic diversity 45 gene variants 44 geneticists 44 genotype 44 SNPs 44 genetic traits 44 sperm 43 Genetic 43 nucleotide 43 phenotype 43 BRCA 43 recombination 43 genetic predisposition 43 genetically identical 42 progenitors 42 DNA methylation 42 ancestry 42 epigenetic 42 heredity 42 evolutionary 42 progenitor 41 genomic 41 hereditary 41 genetic defects 41 miRNAs 41 genetics 41 ES cells 41 interbreeding 41 retrovirus 41 offspring 41 speciation 41 hominid 41 mitochondrial 41 Homo erectus 40 mutated 40 Fragile X 40 messenger RNA 40 amniocentesis 40 DNA strands 40 Semitic 40 paternal 40 mitochondria 40 hunter gatherer 40 genetic sequences 40 DNA testing 40 loci 39 RNA molecules 39 telomeres 39 inbreeding 39 gene expression 39 Drosophila 39 galaxies 39 mammalian 39 civilization 39 malignancy 39 testes 39 Homo