Nrl Gene Expression in Mouse Retina (image) NIH/National Eye Institute Share Print E-Mail Caption Green fluorescence indicating Nrl gene expression in mouse retina. Upper panel showing normal Nrl expression. Bottom panel showing reduced Nrl expression when knocked down with CRISPR. Credit Zhijian Wu and Anand Swaroop Usage Restrictions None Share Print E-Mail 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.