amorphic allele - genetic evidence
Nucleotide 332 of the open reading frame is changed from a G to an A. Amino acid replacement: G111D.
G22699318A
G111D | robo1-PA; G111D | robo1-PC
abnormal neuroanatomy
presumptive embryonic/larval central nervous system
symmetrical commissure
"Fuzzy commissure" phenotype in embryonic central nervous system.
Induced on: Fas3 null chromosome.