Defects Throughout (IMAGE) Rockefeller University Caption Mice that did not produce Sox11 and Sox4 had malformed inner ear structures, as shown by the lining, or sensory epithelium (green), that contains hair cells. For example, in normal development (left), the cochlea (circular structure on top) and utricle (circular structure immediately below) are severely malformed in the absence of the proteins (right). Credit Laboratory of Sensory Neuroscience at The Rockefeller University/PNAS Usage Restrictions Image may be used only to illustrate research described in the accompanying release. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.