WEBChapter 1: Why study chromosomes? 1 1.1 Early studies of chromosomes, 1 1.2 The origin of genetics, and the chromosome theory of inheritance, 1 1.3 The chemical nature of genes and chromosomes, 2 1.4 The position of chromosomes in an age of molecular biology, 3 Website, 4 Chapter 2: Mitosis, meiosis and the cell cycle, 5