amorphic allele - genetic evidence
lethal | recessive
Ddcts1 heterozygotes with Ddc null alleles show temperature-dependent sterility.
Specific DDC activity of newly eclosed adult CyO/Ddc heterozygotes, as percentage of CyO/+ control: 33.7
Wright.
Certain combinations of Ddc alleles show intragenic complementation.
Certain combinations of Ddc alleles show intragenic complementation.