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| Description: Mutations in genes whose protein products participate in chromatin modification are detected by enhancement or suppression of position effect variegationMutation s in genes whose protein products participate in chromatin modification are detected by enhancement or suppression of position effect variegation Variegated eye Su(var) mutations E(var) mutations Red patches are produced by cells in which W is transcribed, and white patches by cells in which W+ is inactivated by heterochromatin spread. Mutations block efficient formation of heterochromatin and leave most cells with active W+ transcription. Mutations enhance heterochromatin formation and re- strict W expression to small patches. Picture Stats: Views: 40 Filesize: 316.32kB Height: 1092 Width: 1388 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=49307 |