abstract:The Bithorax complex (BX-C) is a group of homeotic genes in Drosophila melanogaster which are believed to control the differentiation of the abdominal and posterior thoracic segments, located on chromosome III."A conserved DNA sequence in homoeotic genes of the Drosophila Antennapedia and bithorax complexes", McGinnis W, Levine MS, Hafen E, Kuroiwa A, Gehring WJ.