The elements of the bithorax complex.
D000005:Abdomen; D000818:Animals; D002875:Chromosomes / Q000648:ultrastructure; D004331:Drosophila melanogaster / Q000033:anatomy & histology / Q000196:embryology / Q000235:genetics*; D005786:Gene Expression Regulation; D009154:Mutation; D013909:Thorax