title: On the submicroscopic structure of chromosomes.
mesh_terms: D000818:Animals; D001718:Birefringence; D011232:Chemical Precipitation; D002875:Chromosomes; D004247:DNA / Q000032:analysis*; D004330:Drosophila; D006367:HeLa Cells / Q000166:cytology; D007621:Karyotyping; D008854:Microscopy, Electron; D008859:Microscopy, Polarization; D009698:Nucleoproteins; D012469:Salivary Glands / Q000166:cytology
chemical_list: D009698:Nucleoproteins; D004247:DNA