Allele: Dmel\rtv1
lethal
lethal | recessive
lethal - all die during embryonic stage | recessive
some die during embryonic stage | recessive
cephalopharyngeal skeleton
Zygotes from homozygous germ-line clones in females develop normally.
Larval mouth part colour: dark. Embryo sometimes reversed in egg case (due to hyperactivity at late stages?).
Lefevre.