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GO_term: GO:0001650   

GO:0001650DefinitionA structure found most metazoan nucleoli, but not usually found in lower eukaryotes; surrounded by the dense fibrillar component; the zone of transcription from multiple copies of the pre-rRNA genes is in the border region between these two structures.
Termfibrillar center
TypeCellular_component
ParentComponent_ofGO:0005730
Attributes_of Index Ancestor (27)
DescendentGO:0001650