amorphic allele - molecular evidence
Imprecise excision of the P{Car20}Ubc7Car20 element resulting in a 1.8kb deletion of genomic sequences. This deletion removes the entire Ubc7 transcription unit.
lethal - all die before end of larval stage | recessive
some die during larval stage | recessive
Lethal phase is between the first and second larval instar.