Genetic Variant Leads to Higher Fat (IMAGE) Duke University Caption The experimental mouse on the right lacks a gene for ankyrin-B, causing his fat cells to slurp up twice as much glucose and making him fatter than his normal companion at left. Credit UNC Nutrition and Obesity Research Center Usage Restrictions please credit UNC Nutrition and Obesity Research Center 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.