Skip Nav Destination
1-1 of 1
Journal: Journal of Cell Science
J Cell Sci (1990) 1990 (Supplement_13): 157–168.
Published: 01 January 1990
... developmental pathways. The determination of the R7 photoreceptor in each ommatidium depends on the presence of the sevenless protein which acts as a receptor for positional information on the R7 precursor. The rough gene encodes a homeodomain protein that plays an instructive role in the determination...