The study of a hermaphroditic sheep caused by a mutation in the promoter of gene.

In mammals, sex-determining region Y () gene plays vital role as a transcription factor to regulate the expression of the genes contributing to development of male genitals. Any mutation disrupting expression of gene can cause disorders of sex development (DSDs). In this study, the examination of a hermaphroditic (female-like) Shal sheep which was referred for infertility is described.