Parent ♂

Parent ♀

Name the locus using one or two words that describe the mutant phenotype.

WT ♂
(for reference)

If you don't know which is mutant, consult the flies to the right
- those are male and female wildtype flies.
Click images to enlarge.

F1 ♂

F1 ♀

WT ♀
(for reference)