homeobox[hō′mē ō bäks′]
any of a group of DNA sequences found in certain genes and involved in determining the development of specific organs, tissues, etc. of animal embryos
A sequence of DNA encoding a protein structure that binds to specific parts of DNA and affects transcription of DNA into RNA.
Origin of homeoboxhomeo(tic gene) + box1 (from the fact that its DNA sequence is short and when written can be enclosed by a box on paper).