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| Description: (a) A homeotic gene (shown mostly in light green) contains a 180-bp sequence called the homeobox (shown in dark blue). (b) Homeotic genes encode proteins that function as transcription factors. The homeobox encodes a region of the protein called a homeodomain, which functions in binding to the DNA at a regulatory site, such as an enhancer. The transcriptional activation domain governs the assembly of RNA polymerase components such that transcription can occur.
Picture Stats: Views: 1179 Filesize: 87.22kB Height: 957 Width: 850 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=575 Keywords: Molecular features of homeotic genes and proteins |