Queried GO term:

  idGO:0046113   Detailed information
  namenucleobase catabolic process
  namespacebiological_process
  def"The chemical reactions and pathways resulting in the breakdown of a nucleobase, a nitrogenous base that is a constituent of a nucleic acid." [GOC:ai]
  subsetgosubset_prok
  is_aGO:0009112 ! nucleobase metabolic process
  is_aGO:0034655 ! nucleobase-containing compound catabolic process
  is_aGO:0046700 ! heterocycle catabolic process

No monarch genes has the input GO term: GO:0046113.