hypermorphic allele - genetic evidence
Deletion of 2.3kb from site of P{} insertion, 707bp downstream of the Bx cDNA, to within exon IV of Bx.
visible | semidominant
wing
Rank of homozygous phenotype: 7. Rank of heterozygous phenotype: 6-7. (Rank 1 is wild type. Rank 8 is nearly strap like wings.)
Bx7-8-1 has phenotype, suppressible by Df(1)N19