title: Research needs in meiosis, mechanisms of synapsis, and chiasma regulation.
mesh_terms: D000782:Aneuploidy; D000818:Animals; D002503:Centromere / Q000648:ultrastructure; D002875:Chromosomes / Q000648:ultrastructure; D003433:Crosses, Genetic; D005260:Female; D006110:Grasshoppers / Q000235:genetics; D008540:Meiosis; D008677:Metaphase; D009865:Oocytes / Q000166:cytology; D013573:Synaptonemal Complex