Polytene chromosomes normal.
lethal - all die before end of larval stage | recessive
partially lethal - majority die | recessive
some die during larval stage | recessive
Hemizygotes escape lethality with a frequency of less than 0.2%.
Class 1 (survival at 1% or less of expected).
Phenotypic data included in FBrf0051973.
Phenotypic data included in FBrf0051973.