Genes are the basic functional units of heredity. This course is an introduction to the study of genes and their role in shaping neuronal structure, neuronal function, and behavior. We will learn about classic and modern approaches used to probe the relationship between genes and behavior, with a focus on studies using model organisms (e.g., flies, mice, worms). We will discuss the molecular genetics of neurological disorders with high heritability and the use of genetic tools to treat these conditions, and we will consider the ethics surrounding treatment and diagnosis of these disorders. Student assessment will include short written responses, in-class quizzes, and exams.