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Browse results: Molecular Mechanisms of DNA

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RESOURCE	GRADE LEVEL	MEDIA TYPE
Can We Slow Aging? In this video segment adapted from NOVA scienceNOW, scientists discuss a family of genes called FOXO that can significantly extend life span in worms—and in humans. Accessibility features: Caption	9-12	Video
The Common Genetic Code Paul Nurse describes his research that showed that humans share some genes with organisms as different from us as simple brewer's yeast. Footage from Secret of Life: "Immortal Thread." Accessibility features: Caption	9-12	Video
The Costs and Benefits of Treating Gene Defects In this video excerpt from NOVA, find out how whole genome sequencing saved the life of Alexis, a fraternal twin who was originally diagnosed with cerebral palsy but, in fact, had an even rarer genetic condition. Accessibility features: Caption	9-12	Video
Electrophoresis and Gel Analysis In this animation produced by WGBH and Digizyme, Inc., see how molecules of DNA are separated using gel electrophoresis, and how this process enables scientists to compare the molecular variations of two or more DNA samples. Accessibility features: Caption	9-12	Video
Epigenetics In this video segment adapted from NOVA scienceNOW, learn how what you eat, drink, or smoke may affect the instructions your epigenomes send to your genes, and as a result, change how your DNA is expressed. Accessibility features: Caption	9-12	Video
The Ethics of Preimplantation Genetic Diagnosis In this video excerpt from NOVA, learn about the advantages, disadvantages, and ethical implications of preimplantation genetic diagnosis, or PGD, a technique used to screen embryos created through in vitro fertilization for diseases. Accessibility features: Caption	9-12	Video
Extracting Mummy DNA This video segment adapted from NOVA explains how a DNA sample is taken from a 5,000-year-old mummy and what we can learn from it. Accessibility features: Caption, Transcript	6-12	Video
Forensic DNA Analysis This video segment from NOVA: "The Killer's Trail" investigates the potential for DNA evidence to solve murder cases, even those from the distant past. Accessibility features: Caption	9-12	Video
From the Cystic Fibrosis Gene to a Drug In this video excerpt from NOVA, find out how the discovery of a gene defect has led to the development of a new drug to treat patients with cystic fibrosis. Accessibility features: Caption	9-12	Video
From DNA to Protein This narrated animation schematically shows the process of protein synthesis. Adapted from Interactive NOVA: "Secret of Life." Accessibility features: Caption	9-12	Video
Genetically Engineering the Avian Flu In this video segment adapted from NOVA scienceNOW, learn about a radical biotechnology experiment aimed at figuring out how to stop the avian flu virus. Accessibility features: Caption	9-12	Video
Genetic Engineering and Working with DNA In this animation produced by WGBH and Digizyme, Inc., see how bacterial plasmids are engineered to clone or express genes that code for proteins such as human insulin. Accessibility features: Caption	9-12	Video
Genetic Tool Kit The shared set of genes for body segments, possessed by all animals, are discussed in this video segment from Evolution: "Great Transformations." Accessibility features: Caption	6-12	Video
Genetic Variation This video segment from NOVA: "Cracking the Code of Life" explores the genetic similarities and differences among organisms. Accessibility features: Caption	9-12	Video
Growing Bacterial Cultures This animation produced by WGBH and Digizyme, Inc. demonstrates the techniques researchers use to isolate transformed bacteria and expand their population in order to obtain large quantities of a protein of interest. Accessibility features: Caption	9-12	Video
How DNA Replicates This narrated animation from Interactive NOVA: "The Secret of Life" illustrates DNA replication. Accessibility features: Caption	9-12	Video
Human Genome Project This video segment from NOVA: "Cracking the Code of Life" looks at the meaning and significance of the effort to decode the human genome. Accessibility features: Audio Description, Caption	6-12	Video
Killer Microbe Learn how biotechnology is used to analyze the evolution of a formerly harmless bacterium into a highly drug-resistant and lethal pathogen in this video segment adapted from NOVA scienceNOW. Accessibility features: Caption	9-12	Video
Longevity Genes What is the secret to a long life? Hear from scientists using biotechnology to analyze relationships between specific genes and longevity in this video segment adapted from NOVA scienceNOW. Accessibility features: Caption	9-12	Video
Making an Agarose Gel This video adapted from the University of Leicester demonstrates the step-by-step process of making and pouring an agarose gel, a key component in gel electrophoresis. Accessibility features: Caption	9-12	Video