background preloader

DNA Interactive: Discovering the DNA Structure and beyond

DNA Interactive: Discovering the DNA Structure and beyond

Related:  World of insects, animals, etc

Google Visualizes Massive Changes To The Face Of The Earth With New Timelapse Project A lot can change in 28 years, and Google has put together a very graphic demonstration of just how much can happen geographically with a new effort that combines global, annual Landsat satellite image composites with its Google Earth Engine software. The result is a series of interactive time lapse images that progress year-by-year, showing exactly how things have changed in key areas like the Brazilian Amazon Rain Forest, booming metropolitan areas like Las Vegas and Dubai, and the progress of large bodies of water like the Aral Sea. It’s stunning to watch the Amazon rainforest virtually disappear, or see the building creep across the desert in Vegas, or watch the Columbia Glacier vanish entirely. Google worked with the U.S. Geological Survey, NASA and TIME magazine to build the Timelapse project, and went to Carnegie Mello University’s CREATE Lab to build the final HTML5 site that makes the animations interactive and browsable.

New Genetic Twist: 4-Stranded DNA Lurks in Human Cells Sixty years after scientists described the chemical code of life — an interweaving double helix called DNA — researchers have found four-stranded DNA is also lurking in human cells. The odd structures are called G-quadruplexes because they form in regions of deoxyribonucleic acid (DNA) that are full of guanine, one of the DNA molecule's four building blocks, with the others being adenine, cytosine, thymine. The structure comprises four guanines held together by a type of hydrogen bonding to form a sort of squarelike shape. (The DNA molecule is itself a double strand held together by these building blocks and wrapped together like a helix.)

Was Darwin Wrong? The work of the 19th-century English naturalist shocked society and revolutionized science. How well has it withstood the test of time? Evolution by natural selection, the central concept of the life's work of Charles Darwin, is a theory. It's a theory about the origin of adaptation, complexity, and diversity among Earth's living creatures. If you are skeptical by nature, unfamiliar with the terminology of science, and unaware of the overwhelming evidence, you might even be tempted to say that it's just a theory.

Chlorophyll can help prevent cancer A recent study at Oregon State University found that the chlorophyll in green vegetables offers protection against cancer when tested against the modest carcinogen exposure levels most likely to be found in the environment. However, chlorophyll actually increases the number of tumors at very high carcinogen exposure levels. Beyond confirming the value of chlorophyll, the research raises serious questions about whether traditional lab studies done with mice and high levels of toxic exposure are providing accurate answers to what is a real health risk, what isn't, and what dietary or pharmaceutical approaches are useful. The findings, published in the journal Food and Chemical Toxicology, were done using 12,360 rainbow trout as laboratory models, instead of more common laboratory mice.

Amazing! Scientists: Our DNA is Mutating As We Speak! We Are Developing 12 Strands! A microscopic image of human chromosomes. Little Alfie Clamp has an 'extra arm' on one of his, in what is believed to be a world first.His condition left Alfie unable to see until he was three months old and his muscles were so weak he could not roll over on his own. He still suffers serious digestive problems and needs a cocktail of drugs every day to help his body absorb vital nutrients. He also suffers fits which sparked by high temperatures and metabolic problems stop him from eating or drinking.

Olympic National Park: One of the wildest places left in the USA [36 PICS] Maple Glade Trail. It’s supposed to be a humbling experience to stand amidst such giants in the ancient forests of Olympic National Park. Photo #1 by rachel_thecat Maples in Olympic National Park’s Hoh Rain Forest. 95% of this national park is designated as wilderness, a paradise for backpackers and hikers. Photo #5 by KevinM The twisting tale of DNA - Judith Hauck Deoxyribonucleic acid, or DNA, is a nucleic acid containing the genetic instructions used in the development and functioning of all known living organisms (with the exception of RNA viruses). which contains the biological instructions that make each species unique, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction. National Human Genome Research Institute began as the National Center for Human Genome Research (NCHGR), which was established in 1989 to carry out the role of the National Institutes of Health (NIH) in the International Human Genome Project (HGP). The HGP was developed in collaboration with the United States Department of Energy and begun in 1990 to map the human genome. information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people.

Cnidaria From New World Encyclopedia Cnidaria (pronounced with a silent c) is a phylum containing some 11,000 species of relatively simple invertebrate animals found exclusively in aquatic, mostly marine, environments. Cniderians include corals, sea anemones, jellyfish, sea pens, sea pansies, and sea wasps, and tiny freshwater hydra. The name of the phylum comes from cnidocytes, which are specialized cells that carry stinging organelles. The names Coelenterata and Coelentera were formerly applied to the group, but as those names included the Ctenophores (comb jellies, phylum Ctenophora), they have been abandoned. Cnidarians are highly evident in the fossil records, having first appeared in the Precambrian era.

Cracking the Code of Life Cracking the Code of Life PBS Airdate: April 17, 2001 ROBERT KRULWICH: When I look at this—and these are the three billion chemical letters, instructions for a human being—my eyes glaze over. But when scientist Eric Lander looks at this he sees stories. ERIC LANDER (Whitehead Institute/MIT): The genome is a storybook that's been edited for a couple billion years. DNA Extraction from Wheat Germ DNA Extraction from Wheat Germ Objective · To observe the physical and chemical properties of DNA · Understand one process of DNA extraction · Demonstrate proficiency with one technique of DNA extraction · Use research to make a drawing of DNA with labeled parts

Ed Tech Start Ups Group News The following are some good resources to help students explore the human body through interactive imaging, games, exercises and more. Build-a Body: This is a great website that allows students to build the human body using interactive elements system by system. Each system has descriptions and provides some facts about diseases. Students will only drag and drop the parts of body such as bones, organs,..ect.

Kentucky Blues The story of an Appalachian malady, an inquisitive doctor, and a paradoxical cure. by Cathy Trost ©Science 82, November, 1982 Six generations after a French orphan named Martin Fugate settled on the banks of eastern 's Troublesome Creek with his redheaded American bride, his great-great-great great grandson was born in a modern hospital not far from where the creek still runs. The boy inherited his father's lankiness and his mother's slightly nasal way of speaking.

Related:  Matter and EnergycellsBiology