Studying GAA/TTC Expansions (IMAGE) Georgia Institute of Technology Caption Georgia Tech associate professor Kirill Lobachev and graduate research assistant Yu Zhang review a gel electrophoresis image used for the analysis of repeat expansions, while another monitor shows the growth of yeast colonies. Credit Georgia Tech Photo: Gary Meek Usage Restrictions None 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.