: a spherical body of the nucleus of most eukaryotes that becomes enlarged during protein synthesis, is associated with a nucleolus organizer, and contains the DNA templates for ribosomal RNA — see cell illustration
Recent Examples on the WebIn 2012, Brangwynne and colleagues saw similar fluid features in the nucleolus, a dense mix of proteins, RNA, and DNA that manufactures ribosomes, the cell’s protein factories.
Mitch Leslie, Science | AAAS, 21 Jan. 2021 More membraneless structures continued to be found, such as the nucleolus, a dense structure in the cell nucleus.
Quanta Magazine, 26 Nov. 2018 But there’s more to the nucleolus than just making ribosomes.
Joanna Klein, New York Times, 20 May 2018
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