title: Preparation methods for human pachytene chromosomes.
mesh_terms: D001706:Biopsy; D002875:Chromosomes; D006652:Histological Techniques; D006801:Humans; D008297:Male; D008540:Meiosis; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology*; D013194:Staining and Labeling; D013737:Testis / Q000166:cytology