Nucleolus

Cancer Terms -> Anatomic Structure System or Substance -> Body Part -> Cell Part -> Nucleolus

Nucleolus Definition

Within most types of eukaryotic CELL NUCLEUS, a distinct region, not delimited by a membrane, in which some species of rRNA (RNA, RIBOSOMAL) are synthesized and assembled into ribonucleoprotein subunits of ribosomes. In the nucleolus rRNA is transcribed from a nucleolar organizer, i.e., a group of tandemly repeated chromosomal genes which encode rRNA and which are transcribed by RNA polymerase I.

Nucleolus Synonyms

Nucleolus

Terms in Nucleolus category

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