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nucleolus Definition

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nucleolus
noun(nu-cle-o-lus)
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
nucleolus
noun(nu-cle-o-lus)
the specific part of a chromosome with which a nucleolus is associated especially during its reorganization after nuclear division —called also nucleolar organizer

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