LINKÖPING UNIVERSITY IMAGE: ANTONIOS PANTAZIS, ASSOCIATE PROFESSOR AT THE DEPARTMENT OF BIOMEDICAL AND CLINICAL SCIENCES, AND THE WALLENBERG CENTER FOR MOLECULAR MEDICINE AT LINKÖPING UNIVERSITY. CREDIT: MAGNUS JOHANSSON/LINKÖPING UNIVERSITY Sometimes, even the alteration of a single nucleotide in a gene can cause serious disease. In a young boy with epilepsy, this kind of mutation has...