Fig. 5. Exogenous prostaglandin D₂ induces expression of AMH in cultured female urogenital ridges. Contralateral urogenital ridges from a female 11.5 dpc embryo were cultured without prostaglandin D₂ (A), or with prostaglandin D₂ (B). AMH expression was then examined by immunohistochemistry. Positive signal is shown by the brown precipitate, nuclei were counterstained blue with Haematoxylin. Images are from the genital ridge regions. Scale bar: 50 µm.