Related Experiment Video
Updated: Aug 13, 2026

16:47
Preparation of Developing and Adult Drosophila Brains and Retinae for Live Imaging
Published on: March 16, 2010
Sevenless: a cell-specific homeotic mutation of the Drosophila eye
Abstract:
Each ommatidium in the compound eye of the Drosophila mutant sevenless lacks photoreceptor number seven (R7) from the normal ommatidial complement of eight photoreceptors. A comparison of mutant and normal development reveals that this deficit is caused by the cell-specific transformation of the cell normally fated to produce R7 into a lens-secreting accessory cell, a cone cell.
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