Genetics is a field of biology that is concerned with the study of genes, variation and heredity in living organisms. Trait inheritance and molecular inheritance are the pillars of genetic studies. However, modern genetics has now extended into structural, functional and behavioral investigations of genes. Genetic processes in combination with the environmental factors influence behavior and traits. Genomics is an interdisciplinary field of science that studies the structure, behavior and evolution of the entire set of DNA of an organism. This book traces the progress of these fields and highlights some of its key concepts and applications. It strives to provide a fair idea about these disciplines and to help develop a better understanding of the latest advances. Students, researchers, experts and all associated with the fields of genetics and genomics will benefit alike from this book.