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Description
How does cDNA differ from normal DNA? Can a bullet really implant genes? And why is a gene for bioluminescence so valuable to researchers? This program answers those and other questions as it introduces the process of genetic engineering. Dr. David Cove deftly explains how reverse transcriptase is used to isolate genes, how isolated genes are cloned, how cloned genes are delivered via benign virus or "DNA gun," and how the effects of delivered genes...
Description
This program discusses the dangers of selecting and breeding better and better and fewer and fewer varieties. It explains the dangers of depleting the gene bank: when new diseases or predators appear, entire species may be wiped out because no naturally-resistant varieties remain; and the smaller number of varieties offered tend to omit the regionally well-adapted ones in favor of more generally adapted plants-another disaster waiting to happen. The...
4) Double helix
Description
This fast-paced dramatization starring well-known actor Jeff Goldblum is about the race to solve one of the greatest mysteries of 20th-century science-the structure of DNA. It is the story of the diligent research, creative analysis, and perseverance of James Watson and Francis Crick that led to the discovery. With the help of their colleague, Maurice Wilkins, they also earned the 1962 Nobel Prize. Students of biology and genetics will benefit from...
Description
Some of the hottest challenges facing the 21st century are being worked on right now by biotechnologists. This introductory-level program investigates the dynamic field of biotechnology and examines how it relates to a cross-section of different disciplines such as medicine, healthcare, ergonomics, and communications. In addition, employees from the biotechnology sector offer their insights on the work that they do and on the industry as a whole.
Description
What used to take two weeks currently takes only a day-and in the near future, will likely take mere minutes. In this concise program, Chris Hadkiss, senior scientist at the Forensic Science Service, explains the latest DNA extraction and quantification techniques. Detailed laboratory footage illustrates the processes of sample extraction, quantification, amplification, separation, and interpretation. In addition, Mr. Hadkiss provides background on...
Description
Many scientists and consumers believe that genetic engineering will vastly improve life on Earth, while others believe it will spell the ruin of the planet. What are the facts behind the rhetoric and the hysteria? In this program, Dr. David Cove surveys past and probable future applications of genetic engineering while calmly presenting possible benefits and liabilities. The case is stated for genetically modified crops; microorganism-produced human...
Description
Scientists have come a long, long way since Alexander Fleming's discovery of penicillin, the wonder drug of the 20th century. This program explains the function of infection-fighting antibiotics; vaccinations and insulin, crucial to the prevention of diseases such as smallpox and the management of diabetes; recombinant drugs, treatments involving genetically engineered DNA; and stem cells, those chameleon-like building blocks of the body. Commentary...
Description
If the 20th century was the era of physics and nuclear fission, the 21st belongs to the life sciences. Moving from gene, to genome, to genetically based diseases, this program provides an overview of the interrelated fields of genomics, proteomics, and bioinformatics, with an emphasis on practical applications of biotechnology to the field of medicine. Are genetically personalized drugs around the next corner? Commentary is provided by Bob Forgey,...
Description
Technology has poisoned our planet and biotechnology may be the way to save it. This program shows how biotechnology is finding, altering, and growing answers to chemical pollution-how PCB-eating organisms are designed, tested, and produced and how frost-resistant plant strains are produced. It also examines the dangers of introducing nonnatural substances into our ecosystems, when we are unable to forsee their potential side effects. Love Canal serves...
Description
Any discussion of genetic engineering first requires a knowledge of how organisms replicate. In this program, Dr. David Cove describes the structure and function of DNA as he covers how coding sequences and promoters work together to create proteins from amino acids. DNA's remarkable suitability as a medium for duplicating the blueprints of life both rapidly and accurately in a simple yet precise language is emphasized.
Description
What does genetic diversity mean, and what is its relationship to evolution? This video answers that intriguing question as it summarizes the theory of natural selection and describes the process of trait inheritance. Advances stemming from the Human Genome Project-an ever-deepening understanding of life on Earth, improvements in disease detection and treatment, and applications of genomics to agriculture, the environment, and forensic science-are...
Description
Genetically speaking, only half a percent's difference separates any two human beings in the world, less of a difference than that between any two chimpanzees or gorillas. In this program, Robert Krulwich, the engaging science correspondent for ABC News, joins Eric Lander, professor at MIT's Whitehead Institute, to provide a concise look at the results of the Human Genome Project, a fascinating roundup of discoveries that truly puts the human race...
Description
Genetic science holds the keys to life itself. How should this knowledge be used? Enhanced by outstanding 3-D computer animations and microscopic imaging, this engaging program featuring Dr. Cary Fowler, author of Shattering: Food, Politics, and the Loss of Genetic Diversity, takes a balanced look at the biotechnological revolution. Among the numerous topics surveyed are genetic engineering, cloning, gene therapy, genetically modified food crops,...
Description
Biogeneticists are engineering new yeasts and fungi as well as entirely new growing methods, and in the process are giving a new definition to the word "natural." If yeasts and fungi can turn decaying wood into sugar, why should humans not be able to grow ethanol cheaply and efficiently? This program follows the course of the research into the artificial culture of natural trees, as well as new methods of accelerating plant propagation and growth....
Description
In the era of Big Pharma, why are researchers looking more and more to nature-and the human body itself-to provide tomorrow's medical cures? This program illustrates how scientists are growing and harvesting pharmaceuticals from common plants and farm animals, attempting to replicate organs, and transferring much-needed islet cells to patients with diabetes. The next big breakthrough in medical care is as likely to come from a rainforest or a goat...
Description
Shedding light on today's biotech revolution, this intro-level program examines the controversies surrounding genetically modified organisms, or GMOs, specifically in agriculture. The program explains the process of modification using crown gall disease and Agrobacterium tumefaciens as models to demonstrate how genetic engineering works in plants. Marker genes, DNA constructs, promoters, ligase, restriction enzymes, and the real-world agricultural...
Description
Would you consider cabbage as the leafy long-lost relative? James May does, thanks to the genius of Charles Darwin. But exactly how does Darwin's famous theory of natural selection explain why we are all mutants and what war is actually good for? James treks off into the wilderness with the natural advantage of fantastic motion graphics and vivid animation to show us how.
Description
Still in its infancy, tissue engineering has already made it possible to grow human-based substitutes for basic bodily systems. In this program, experts from MIT, the Georgia Institute of Technology, and Advanced Tissue Sciences, a commercial leader in tissue engineering technology, focus on synthesized skin and arteries, as well as cellular growth-inducing patches. Applications of these products for burn victims and people with diabetes are demonstrated....
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