Skip to main content

🧬ap biology review

Nucleolus in AP Biology

Verified for the 2027 exam
Verified for the 2027 exam•Fiveable Content Team

Definition

The nucleolus is a small, dense region within the nucleus of a cell where ribosomal RNA (rRNA) is produced and assembled with proteins to form ribosomes.

This definition is part of Fiveable's AP Biology review, which also has guided practice questions.