The reciprocal product, a reversed acrocentric compound X C(1)RA60g was recovered from the same fly. A spontaneous exchange in a triploid female between the distally located heterochromatin of In(1)sc8, y31d and the proximal heterochromatin of a normal X
Left limit of break 1 from non-inclusion of ac (citation unavailable) Right limit of break 1 from polytene analysis (citation unavailable) Left limit of break 2 from polytene analysis (citation unavailable) Right limit of break 2 from non-inclusion of su(f) (citation unavailable)