Polytene chromosomes normal.
Amino acid replacement: K206term.
AAG8678025TAA
A?T
K206term | hry-PA; K206term | hry-PB
AAG?TAA
Two nucleotides are changed in codon K206 in the mutant (AAG to TAA).
lethal
lethal | recessive
Class IV allele: has a strong segmentation phenotype either when homozygous or in trans with h25, and fails to complement the bristle phenotype of h1.