Definition of Homeotic Gene

Homeotic gene is a gene whose function is to govern and control the developmental fate of a certain part of a body. These genes control the pattern of the formation of a body in the early embryonic developmental stage of organisms. These genes express such proteins that control the cells in a way that they form different parts of the body. These proteins are termed as transcription factors.


These proteins have the ability to activate one gene and to repress another one. Hence, these effects are mandatory for the development of an organism in an ordered way. The homeotic genes are composed of a DNA sequence that is known as homeobox which serves the purpose of encoding the region of the protein that contains 60 residues of amino acids.


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