classify each phrase or term as applying to fly a only, fly b only, or both fly a and fly b. the term "hox genes" applies to clusters of homeotic genes found in many different animals, including fruit flies. after segmentation genes have established the body segments, hox genes trigger the development of segment-specific body structures in the correct locations. for more on hox genes, see hints 2 and 3. drag each phrase or term to the appropriate bin.