This text addresses such questions as: what is genetic engineering?; how is it carried out and what can it do?; what is cancer and can genetic engineering provide a cure?; why is AIDS so difficult to cure?; which diseases are determined genetically?; how are they passed on from parents to their children?; is intelligence genetically determined?; can gene therapy cure all our genetic diseases?; can genetic engineering solve the problem of world famine?; are genetically-engineered organisms a threat to Earth's economy?; should people be discriminated against by insurance companies and employers, because of their genes?; and who should make decisions about ethical problems created by genetic engineering? The book covers the various applications of genetic engineering and examines the impact that this technology has already made, and will make in the near future, on human society.