Nucleolus Organizer Region |
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| Nucleolar Organizers; Nucleolus Organizer Regions; Organizer Region, Nucleolus; Organizer Regions, Nucleolus; Organizer, Nucleolar; Organizers, Nucleolar; Region, Nucleolus Organizer; Regions, Nucleolus Organizer | |
| The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA. | |