Construct: Nucleotide substitution: G9C. Encodes a maternal hb mRNA in which the endogenous wild-type nos response elements (NREs) have been deleted, and two copies of a mutant NRE have been inserted.
lethal - all die during embryonic stage | maternal effect
some die during embryonic stage | maternal effect
embryonic abdominal segment
Embryos expressing hbNRE.G9C have 2-3 abdominal segments.