The role of the nucleolus in the formation of ribosomes.
D000818:Animals; D001001:Anura / Q000166:cytology; D002467:Cell Nucleus; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D009154:Mutation; D012313:RNA / Q000096:biosynthesis*; D012270:Ribosomes / Q000378:metabolism*
D012313:RNA