Molecular Biology of RNA: New Perspectives provides an overview of the developments in RNA research as well as the approaches, strategies, and methodologies used. Most of the contributing authors in the present volume participated in the Fifth Stony Brook Symposium entitled "New Perspectives on the Molecular Biology of RNA" in May 1986. The text is organized into six parts. Part I contains papers dealing with RNA as an enzyme. Part II presents studies on RNA splicing. Part III examines RNA viruses while Part IV focuses on the role of RNA in DNA replication. Part V is devoted to the structure, function, and isolation of RNA. Finally, Part VI takes up the role of RNA in regulation and repression. This volume will help provide new direction and insight for those already working on the subject and will serve as a useful guide to those about to start research in the molecular biology of RNA.