Figure 1.—
alph mutations rescue the lethality of hep, lic, and slpr alleles. (A) The number of hepG0107/Y or licG0252/Y males was scored in the absence or in the presence of a homozygous alphS-331 allele and compared to the number of males carrying the FM7 balancer chromosome (FM7/Y) in the same cross. (B) The number of slprBS06/Y males was scored in the absence or in the presence of various heterozygous mutant alleles [or a heterozygous chromosomal deletion (Df(3R)Dr-rv1) that removes the 99A7-B11 cytological region]. Their relative numbers were also compared to males carrying the FM7 balancer chromosome in the same cross. Results are expressed as a percentage. The number of flies scored per genotype is indicated on top of each bar.