Queried GO terms:

  idGO:0000805   Detailed information
  nameX chromosome
  def"The sex chromosome present in both sexes of species in which the male is the heterogametic sex. Two copies of the X chromosome are present in each somatic cell of females and one copy is present in males." [GOC:mah, ISBN:0582227089]
  is_aGO:0000803 ! sex chromosome

Monarch genes with this GO terms: