The National Center for Case Study Teaching in Science (NCCST) at State University of New York-Buffalo has recently added this lesson plan to its extensive collection. The NCCST aims to encourage the use of case studies in science courses, as they hold "great promise as a pedagogical technique for teaching science, particularly to undergraduates, because it humanized science and well illustrates scientific methodology and values." This particular lesson plan guides students in analyzing the abstract, methods, and results of a research paper about the lignin content of genetically modified corn, published in the American Journal of Botany. It is intended for use in a senior-level plant ecology course or a graduate level biostatistics course. The full article used for this case study is not available to nonsubscribers, but the lesson plan functions without it.