nucleolar transcription

Nucleolar transcription is the process by which the nucleolus, a small structure inside the cell nucleus, produces ribosomal RNA (rRNA). This rRNA is essential for making ribosomes, the cell’s protein-synthesizing machines. Specialized genes called rDNA are transcribed by enzymes called RNA polymerase I, which convert DNA into rRNA. The nucleolus gathers these components, helping assemble ribosomes efficiently. Overall, nucleolar transcription is vital for cell growth and function, as it ensures a steady supply of ribosomes needed for producing proteins essential to life.