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homeobox gene

Any of a large family of genes containing a characteristic sequence of nucleotides, called the "homeobox," that codes for an amino acid sequence that binds to DNA. Homeobox genes are found in all multicellular organisms and play an important role in embryologic development.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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Indo-European & Semitic Roots Appendices

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