Some imaginal discs of homozygous larvae are missing, others are normal. Defects in the cell cycle: few or no dividing cells, affects chromosome condensation, arrest of the cell cycle at metaphase and cell division failures that result in highly polyploid cells.
pupal lethal leg discs degenerated; remaining imaginal discs of normal size and structure. Chromosomes in larval ganglion cells irregularly condensed, often displaying coiled and banded appearance; in addition, chromatid breaks and extremely hyperploid or tetraploid cells are frequently observed (Gatti, Pimpinelli, Bove, Baker, Smith, Carpenter and Ripoll, 1984 ; Gatti and Baker, 1989).
Maternal germline clonal analysis demonstrates there is no maternal effect.