Intended as a revision manual for students taking first year courses in molecular genetics or genetics, the book includes work on the molecular genetics of eucarycotes and genetic engineering. Each chapter comprises basic concepts, examination-style questions and a further short test with answers. The questions require answers of varied length, ranging from a few lines to a short essay. The answers to the questions are a fundamental part of the text. Material that is supplementary to the strict requirements of the answer is enclosed in brackets.