Meiotic exchange without the synaptinemal complex.
D000818:Animals; D003434:Crossing Over, Genetic; D004330:Drosophila; D005260:Female; D005838:Genotype; D008297:Male; D008540:Meiosis; D008854:Microscopy, Electron; D010053:Ovary / Q000166:cytology; D013737:Testis / Q000166:cytology