Strongly dorsalized phenotype in embryos when mothers are heterozygous for dl24 and a deficiency for dl. Weakly dorsalized phenotype in embryos when mothers are heterozygous for dl24 and wild type. Phenotypes can be rescued to weakly dorsalized with 75% hatching by an additional copy of dl+ carried in P{dlhs.P}.
Embryos derived from heterozygous females have a range of phenotypes, from a disarranged head skeleton to a "tail-up" phenotype.
dominant
dl24 is rescued by dlHsp83.PG
Analysis of germ-line chimeras shows that this mutation is both germ-line and soma-dependent.