title: Chromosome diminution in Ascaris suum. Chromatin structure.
mesh_terms: D000818:Animals; D001200:Ascaris / Q000032:analysis* / Q000196:embryology; D002843:Chromatin / Q000032:analysis*; D002875:Chromosomes / Q000502:physiology; D004247:DNA / Q000032:analysis*; D003851:Deoxyribonucleases / Q000494:pharmacology; D006657:Histones / Q000032:analysis*
chemical_list: D002843:Chromatin; D006657:Histones; D004247:DNA; D003851:Deoxyribonucleases