Queried GO terms:

  idGO:0046546   Detailed information
  namedevelopment of primary male sexual characteristics
  namespacebiological_process
  def"The process whose specific outcome is the progression of the primary male sexual characteristics over time, from their formation to the mature structures. The primary male sexual characteristics are the testes, and they develop in response to sex hormone secretion." [GOC:ai]
  is_aGO:0045137 ! development of primary sexual characteristics
  relationshippart_of GO:0046661 ! male sex differentiation

No monarch genes has this GO term.