Term Name:	90S preribosome assembly
Synonyms:
Definition:	The aggregation, arrangement and bonding together of proteins and RNA molecules to form a 90S preribosome. The 90S preribosome represents the complex that forms on the primary rRNA transcript before it splits into the small subunit and large subunit portions.
Ontology:	GO: Biological Process [GO:0034463]    QuickGO    AmiGO