Examines the latest innovations and the overall impact of PCR on areas of molecular research.

James D. Watson When, in late March of 1953, Francis Crick and I came to write the first Nature paper describing the double helical structure of the DNA molecule, Francis had wanted to include a lengthy discussion of the genetic implications of a molecule whose struc ture we had divined from a minimum of experimental data and on theoretical argu ments based on physical principles. But I felt that this might be tempting fate, given that we had not yet seen the detailed evidence from King's College. Nevertheless, we reached a compromise and decided to include a sentence that pointed to the biological significance of the molecule's key feature-the complementary pairing of the bases. "It has not escaped our notice," Francis wrote, "that the specific pairing that we have postulated immediately suggests a possible copying mechanism for the genetic material." By May, when we were writing the second Nature paper, I was more confident that the proposed structure was at the very least substantially correct, so that this second paper contains a discussion of molecular self-duplication using templates or molds. We pointed out that, as a consequence of base pairing, a DNA molecule has two chains that are complementary to each other. Each chain could then act ". . . as a template for the formation on itself of a new companion chain, so that eventually we shall have two pairs of chains, where we only had one before" and, moreover, " ...

A technique used to amplify the number of copies of a specific region of DNA, the polymerase chain reaction (PCR) is at the forefront of the dramatic development of biochemistry. This text provides the tools for developing innovative approaches to using this leading technology. It includes theoretical considerations, discussions, and a selection of

In this essential guide to the brave new future, Dr. Kevin Davies, author of Cracking the Genome, reveals the masterful ingenuity that transformed the process of decoding DNA and vividly brings the extraordinary drama of the grand scientific achievement to life. In 2000, President Bill Clinton signaled the completion of the Human Genome Project at a cost in excess of $2 billion. A decade later, the price for any of us to order our own personal genome sequence—a comprehensive map of the 3 billion letters in our DNA—had already dropped to just $1,000. Dozens of men and women—scientists, entrepreneurs, celebrities, and patients—have already been sequenced, pioneering a bold new era of personalized genomic medicine. The $1,000 genome has long been considered the tipping point that would open the floodgates to this revolution. How has this astonishing achievement been accomplished? To research the story of this unfolding revolution, critically acclaimed science writer Kevin Davies traveled to the leading centers and interviewed the entrepreneurs and pioneers in the race to achieve the $1,000 genome. Davies also profiles the future of genomic medicine and thoughtfully explores the many pressing issues raised by the tidal wave of personal genetic information.

"A technique used to amplify the number of copies of a specific region of DNA, the polymerase chain reaction (PCR) is at the forefront of the dramatic development of biochemistry. This text provides the tools for developing innovative approaches to using this leading technology. It includes theoretical considerations, discussions, and a selection of state-of-the-art techniques for mutation studies, clinical diagnosis, and the detection of food-borne pathogens. This edition also discusses the preparation of PCR experiments, includes examples of analytical PCR divided into qualitative and quantitative applications, and explores preparative methods that address DNA generation for further analysis and in vitro evolution"--Provided by publisher.

This is the story of a revolution in economic policy from its origin in Congressman Jack Kemp's office in the summer of 1975 through the first thirty months of the Reagan Administration.

Making PCR is the fascinating, behind-the-scenes account of the invention of one of the most significant biotech discoveries in our time—the polymerase chain reaction. Transforming the practice and potential of molecular biology, PCR extends scientists' ability to identify and manipulate genetic materials and accurately reproduces millions of copies of a given segment in a short period of time. It makes abundant what was once scarce—the genetic material required for experimentation. Making PCR explores the culture of biotechnology as it emerged at Certus Corporation during the 1980s and focuses on its distinctive configuration of scientific, technical, social, economic, political, and legal elements, each of which had its own separate trajectory over the preceding decade. The book contains interviews with the remarkable cast of characters who made PCR, including Kary Mullin, the maverick who received the Nobel prize for "discovering" it, as well as the team of young scientists and the company's business leaders. This book shows how a contingently assembled practice emerged, composed of distinctive subjects, the site where they worked, and the object they invented. "Paul Rabinow paints a . . . picture of the process of discovery in Making PCR: A Story of Biotechnology [and] teases out every possible detail. . . . Makes for an intriguing read that raises many questions about our understanding of the twisting process of discovery itself."—David Bradley, New Scientist "Rabinow's book belongs to a burgeoning genre: ethnographic studies of what scientists actually do in the lab. . . . A bold move."—Daniel Zalewski, Lingua Franca "[Making PCR is] exotic territory, biomedical research, explored. . . . Rabinow describes a dance: the immigration and repatriation of scientists to and from the academic and business worlds."—Nancy Maull, New York Times Book Review

This state-of-the-art collection of easily reproducible methods includes all of the major techniques of DNA analysis currently used in forensic identity testing. The methods include the recovery of DNA from a large range of sample types, analysis of DNA as single and multi-locus VNTR probes, PCR amplification of STR and other loci, and mitochondrial sequencing. The expert scientists writing here -- many from laboratories around the world -- also discuss how to interpret the results in cases of unknown identity and disputed parentage.-- Covers all steps from extraction of human DNA through to analysis and interpretation-- Takes advantage of new methodologies such as capillary electrophoresis-- Clear step-by-step instructions ensure unfailing reproducibility.

Geneticists and molecular biologists have been interested in quantifying genes and their products for many years and for various reasons (Bishop, 1974). Early molecular methods were based on molecular hybridization, and were devised shortly after Marmur and Doty (1961) first showed that denaturation of the double helix could be reversed - that the process of molecular reassociation was exquisitely sequence dependent. Gillespie and Spiegelman (1965) developed a way of using the method to titrate the number of copies of a probe within a target sequence in which the target sequence was fixed to a membrane support prior to hybridization with the probe - typically a RNA. Thus, this was a precursor to many of the methods still in use, and indeed under development, today. Early examples of the application of these methods included the measurement of the copy numbers in gene families such as the ribosomal genes and the immunoglo bulin family. Amplification of genes in tumors and in response to drug treatment was discovered by this method. In the same period, methods were invented for estimating gene num bers based on the kinetics of the reassociation process - the so-called Cot analysis. This method, which exploits the dependence of the rate of reassociation on the concentration of the two strands, revealed the presence of repeated sequences in the DNA of higher eukaryotes (Britten and Kohne, 1968). An adaptation to RNA, Rot analysis (Melli and Bishop, 1969), was used to measure the abundance of RNAs in a mixed population.