Molecular cloning demonstrated that the location of an exon, 1A, responsible for the ventral-specific light (white) belly is within a 3.1-kb element that is duplicated in the opposite orientation 15-kb upstream producing an interrupted palindrome approximately 22 kb in length. (J:35710)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count