Slice through mouse brain (IMAGE) University of California - Berkeley Caption Brain slice from a transgenic mouse, in which genetically defined neurons in the cerebral cortex are labeled with a red fluorescent reporter gene. Credit Image by Tanya Daigle, courtesy of the Allen Institute Usage Restrictions none License Original 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.