amorphic allele - genetic evidence
Imprecise excision of the P{GT1}Wnt5BG00642 insertion has created a deletion that removes about half of the Wnt5 coding region, including the start.
Wnt5207/Df(1)E128 embryos show CNS phenotypes of similar severity to those seen in Wnt5207 homozygous mutants, indicating Wnt5207 is a null allele.