Related by context. Frequent words. (Click for all words.) 61 Y chromosome 60 X chromosome 60 Y chromosomes 60 X chromosomes 58 recessive gene 54 genetic abnormality 52 heterozygous 52 imprinted genes 52 chromosomal abnormality 52 mtDNA 51 genetic variant 51 rhesus 51 mutated gene 51 genetic defect 51 germline 51 heritable 51 mutant gene 51 asexual 51 genetic trait 51 genetically identical 50 genetically inherited 50 hermaphrodites 50 mutation 50 diploid 50 Mitochondrial DNA 50 genetically 49 procreate 49 defective gene 49 offspring 49 APOE4 49 mutant genes 49 alleles 49 chromosome 49 genetically programmed 49 genetic mutation 48 zygote 48 undifferentiated cells 48 chromosomal 48 gene mutation 48 gene 48 major histocompatibility complex 47 mitochondrial DNA 47 allele 47 genetic 47 BRCA1 gene 47 recessive 47 mutant 47 LB1 46 homozygous 46 herpes viruses 46 gonads 46 FTO gene 46 IGF1 46 genes 46 BRCA2 gene 46 neonate 46 microcephaly 46 trisomy 46 asexual reproduction 46 Toxoplasma 46 polyandry 46 genetic alteration 46 pluripotent cells 45 gene variant 45 mutations 45 mitochondrial genome 45 unfertilized egg 45 genetic abnormalities 45 phenotype 45 copulate 45 Mongoloid 45 ovulate 45 chromosomes 45 mutant strain 45 ApoE4 45 heterosexual males 45 spermatozoa 45 maleness 45 haplotype 45 BRCA mutations 45 Chromosomes 45 germ cells 45 neural tube defect 44 menstruate 44 hermaphroditic 44 unfertilized eggs 44 inheritable 44 Neanderthal 44 melanosomes 44 ectopic 44 vaginal secretions 44 genetic mutations 44 testis 44 chimeric 44 uncircumcised 44 relatedness 44 chromosomal abnormalities 44 gene variation 44 Homo Sapiens 44 susceptibility gene 44 genotyped