The Dr. John T. Macdonald Foundation Department of Human Genetics and the John P. Hussman Institute for Human Genomics will host a seminar by Mauricio Arcos-Burgos, research associate professor in the Department of Psychiatry and Behavioral Sciences, who will present “Genetic Dissection of Complex Traits in a Genetic Isolate: ADHD and Facial Clefting as examples ” on Tuesday, November 3 at 4 p.m. in the Mailman Center for Child Development, eighth-floor auditorium.