Any of a class of closely similar sequences that occur in various genes and are involved in regulating embryonic development in a wide range of species.
- Black vertical lines indicate the typical homeobox gene family and gray vertical lines the atypical homeobox gene family.
- A homeobox gene involved in setting up the mammalian body plan also appears to control grooming behavior in mice.
- Because of their fundamental importance in development, homeobox genes are of substantial interest to evolutionary biologists as they may provide key information on the evolution of development.
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