[Recent perceptions about chromosome pairing in meiosis].

Recent results from meiotic research in animals are presented with emphasis on the pairing behaviour of autosomes und sex chromosomes. Synaptonemal complex preparations were primarily utilized, that allowed observations of the pairing behaviour of the sex chromosomes is quite remarkable. The structure and function of the synaptonemal complex is discussed and the localization of the pseudo autosomal region on the sex chromosomes is described.