A 27bp region extending from position -44 to -18 of the wild-type y gene (this includes a wild-type TATA box) is inserted at position -17/-18 (nucleotides are numbered relative to the transcription start site at +1).
Body colour: pigmentation score (where 1 = null/nearly null, 5 = wild type/nearly wild type): hemizygote: 5 (wing), 5 (body), homozygote: 5 (wing), 5 (body), yTT/y82f29 : 5 (wing), 5 (body), yTT/y2 : 5 (wing), 5 (body), yTT/y62a : 5 (wing), 5 (body), yTT/y2374 : 5 (wing), 5 (body).