The Nucleolus is a Highly Active Region of the Nucleus

Question

The nucleolus is a highly active region of the nucleus that is required for synthesis of ribosomes.

Accepted Answer

The nucleolus is a specialized subunit within the nucleus that plays a key role in ribosome biogenesis. It contains DNA that encodes ribosomal RNA (rRNA) and assembles ribosomal subunits from rRNA and ribosomal proteins. Therefore, it is a highly active region of the nucleus that is essential for the synthesis of ribosomes.