Polytene chromosomes normal (Welshons).
Male flies carrying Dp(1;2)51bV76e show wing-notching and lateral incisions, leg defects and tarsal reductions, missing or multiple bristles, missing or fused ocelli and variegated or roughened eyes, at varying frequencies.
Typical Notch. Lethal with Nnd-3. Cell lethal in tergites and dorsal mesothorax (Ripoll and Garcia-Bellido, 1979).
Nicoletti.