Dictionary of Human Evolution and Biology

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Homeobox Gene

Any one of a group of regulatory genes that consist in part of a sequence of 180 base pairs, and that encode a chain of 60 amino acids (a protein motif) that functions to regulate embryonic development. Homeobox genes subdivide a developing embryo from head to tail into different regions, including redundant body segments. They are structurally similar in many organisms, such as insects, mice, and humans, i.e. they are highly conserved sequences. Aka homeodomain.

See HOX gene.

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