Dr. Guo has a broad background in molecular biology, genetics, developmental biology, neurobiology, and is interested in the molecular genetic mechanisms that regulate brain development and function. As a graduate student at Cornell University, she employed the invertebrate model organism C. elegans, and made significant contributions to the discovery of RNA interference (RNAi) as well as understanding of asymmetric cell divisions. respectively, she carried out neurobiological studies of the development of brain neurotransmitter systems, using the vertebrate genetic model organism zebrafish. After establishing her independent research lab at the University of California, San Francisco, Dr. Guo has continued to study the molecular genetics of neural development and has expanded her research into the understanding of behavior. With her research, Dr. Guo strives to make significant contributions to our basic understanding of the brain and the mind, as well as to help treat neuropsychiatric disorders.