No detectable change in restriction map (Kidd, Lockett and Young, 1983).
lethal | recessive
visible
macrochaeta
Heterozygotes display a sparse hair pattern on the thorax.
Male and female homozygotes lethal. NAx-S/+ males and females show sparse thoracic hairs. NAx-S/Ax similar to Ax/Ax, viability strongly reduced. NAx-S/NS is lethal. Not suppressed by su(Hw)2.
Schalet.