CRISPR 1 (IMAGE) Rice University Caption Rice University bioscientists have designed novel on and off switches to control the “silent” genes -- as many as 40 of them -- in a strain of bacteria. Their CRISPR-based strategy could boost the perpetual search for new antibiotics. Credit Illustration by Andrea Ameruoso/Chappell Lab 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.