Large mutant clones in the eye result in a total lack of eye development.
XX eggs laid by homozygous females die at the embryonic stage at the nonpermissive temperature (22oC and above). The variegated morphology of the In(1)fB15 chromosome is suppressed in males derived from daunspecified/daunspecified mothers.
Females heterozygous for Df(1)N19 that are derived from daunspecified/+ mothers show reduced viability at 29oC.
Triploid intersexes that are the progeny of homozygous da- mothers are masculinised.