Queried GO terms:

  idGO:0070925   Detailed information
  nameorganelle assembly
  def"The aggregation, arrangement and bonding together of a set of components to form an organelle. An organelle is an organized structure of distinctive morphology and function. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton. Excludes the plasma membrane." [GOC:mah]
  is_aGO:0071844 ! cellular component assembly at cellular level
  relationshippart_of GO:0006996 ! organelle organization

No monarch genes has this GO term.