Weak suppressor levels of position effect vareigation and a high frequency of aberrant mitosis in neuroblasts or ganglion mother cells. Metaphase chromosomes and anaphase chromatids are over condensed.
Pp1-87B87Bg-5 is rescued by Pp1-87B+t5.8
The lethality of Pp1-87B87Bg-5 is rescued by Pp1-87B+t5.8.