title: Chromatin structure, DNA structure.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002843:Chromatin / Q000032:analysis; D003461:Crystallography; D004247:DNA / Q000032:analysis; D003850:Deoxyribonuclease I; D004331:Drosophila melanogaster / Q000235:genetics; D004706:Endodeoxyribonucleases / Q000378:metabolism; D009690:Nucleic Acid Conformation
chemical_list: D002843:Chromatin; D004247:DNA; D004706:Endodeoxyribonucleases; D003850:Deoxyribonuclease I