From School Library Journal Grade 9 Up—Rather than a series of point/counterpoint articles, this book contains single chapters that each pose a question, e.g., "Is human cloning ethical?" and provide background and information in support of different responses to a specific controversy. Each chapter also includes a useful selection of related primary-source material. Throughout, Roleff gives necessary background in genetics to help students understand how cloning works. The technical language becomes a bit overwhelming in the chapter "Is Embryonic Stem Cell Research Ethical?" when the difference between pluripotent embryonic and multipotent adult stem cells is discussed. Those concepts are tackled and explained in as simple a way as possible, but the vocabulary and concepts are understandably daunting. Still, compared to titles such as John Woodward's
