lethal | recessive
visible
eye
Heterozygotes display reduced eyes.
eye small, narrow, and kidney-shaped. Overlaps wild type in old cultures. Dfdr/Dfd1 more extreme than Dfd1/+.
Dfdr has visible | cold sensitive phenotype, enhanceable by opht1
Dfdr has eye | cold sensitive phenotype, enhanceable by opht1
Bridges, 4 December 1930.