title: Accessibility of metaphase chromosomes from Chinese hamster ovary cells to DNase II.
mesh_terms: D000818:Animals; D002021:Buffers; D002118:Calcium / Q000494:pharmacology; D002413:Cations, Divalent; D002478:Cells, Cultured; D002875:Chromosomes / Q000187:drug effects / Q000648:ultrastructure*; D006224:Cricetinae; D003412:Cricetulus; D003851:Deoxyribonucleases / Q000494:pharmacology*; D004706:Endodeoxyribonucleases; D004720:Endonucleases / Q000494:pharmacology*; D005260:Female; D008677:Metaphase; D009707:Nucleosomes / Q000648:ultrastructure; D010053:Ovary / Q000648:ultrastructure; D011073:Polyamines / Q000494:pharmacology*
chemical_list: D002021:Buffers; D002413:Cations, Divalent; D009707:Nucleosomes; D011073:Polyamines; D003851:Deoxyribonucleases; D004706:Endodeoxyribonucleases; D004720:Endonucleases; C019329:deoxyribonuclease II; D002118:Calcium