Polytene chromosomes normal (Hannah-Alava).
visible | recessive
wing
aBaC/+ is normal; aBaC/aba has broad angular wing, but overlaps wild type. aBaC is dominant in its interaction with certain svr alleles. RK3.
aBaC, svrunspecified has visible | dominant phenotype
aBaC, svrunspecified has wing phenotype
Goldschmidt.