The nucleolus consists of a peripheral granular region for ribosomal subunit precursors and a central fibrillar region containing rRNA and rDNA.
The nucleolus has a peripheral granular area containing ribosomal subunit precursors and a central fibrillar area with heavy rRNA and rDNA.
| Front | Regions of Nucleolus |
|---|---|
| Back | Peripheral Granular Area: contains precursors of ribosomal subunits Central Fibrillar Area: contains heavy rRNA and rDNA. |
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