This DVD presentation explores the fundamental principles of heredity and variation. Terms such as cell, chromosomes, DNA, and RNA are defined and described to aide in the understanding of the genetic processes. Detailed graphics and illustrations of topics, such as Meiosis and Mitosis development, will support student comprehension of the more advanced genetic concepts. The history of inheritance is also discussed, as well as the use of technology to improve genetic outcomes and to benefit livestock industry. Collaborator: Andy Herring, Ph.D., Texas A&M University.