title: A new meiotic mutation: desynapsis of individual bivalents.
mesh_terms: D003434:Crossing Over, Genetic; D006801:Humans; D007248:Infertility, Male / Q000235:genetics*; D008297:Male; D008540:Meiosis; D009154:Mutation; D012661:Semen / Q000166:cytology; D013737:Testis / Q000648:ultrastructure