Queried GO terms:

  idGO:0045137   Detailed information
  namedevelopment of primary sexual characteristics
  namespacebiological_process
  def"The process whose specific outcome is the progression of the primary sexual characteristics over time, from their formation to the mature structures. The primary sexual characteristics are the testes in males and the ovaries in females and they develop in response to sex hormone secretion." [GOC:ai]
  is_aGO:0003006 ! developmental process involved in reproduction
  relationshippart_of GO:0007275 ! multicellular organismal development
  relationshippart_of GO:0007548 ! sex differentiation

No monarch genes has this GO term.