kn << bk1 << ES2-1 << bk2 << veg
This deletion removes a single ribosomal protein-coding gene (though other genes are also removed).
Homozygous embryos show defects in salivary gland invagination and migration.
Flies heterozygous for the deletion do not show a Minute bristle phenotype.
Homozygous embryos are very abnormal compared to wild-type.