n. A short sequence of DNA that is shared by several genes involved in the morphogenesis of many organisms.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. one of various similar homeotic genes that are involved in bodily segmentation during embryonic development
Word Usage
"Now, there are some observations that would have been inconsistent with the theory ¦ for example, if the dolphin homeobox genes were more fish-like than mammal-like."