Sex-chromosome pairing and male fertility.
D000818:Animals; D004331:Drosophila melanogaster; D005298:Fertility; D006110:Grasshoppers; D006579:Heterozygote; D006801:Humans; D008297:Male; D008540:Meiosis; D051379:Mice; D012730:Sex Chromosomes; D014178:Translocation, Genetic