noun
- a small dense spherical structure in the nucleus of a cell during interphase
Usage: biology
Examples
- The nucleolus is responsible for ribosome production in the cell.
- Scientists observed the nucleolus under a high-powered microscope.
- The nucleolus disappears during cell division and reforms afterward.
- RNA synthesis occurs primarily in the nucleolus.
- The size of the nucleolus varies depending on the cell’s metabolic activity.
- Multiple nucleoli can be present in a single cell nucleus.