Keyword: helixmakemineadouble
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A 5,300-year-old man found sticking out of an Alpine glacier in 1991 possessed more genes in common with Neandertals than Europeans today do. The man’s Neandertal heritage is a preliminary sign that Stone Age interbreeding occurred more frequently than many scientists assume. Two researchers determined that the previously analyzed genome of Ötzi the Tyrolean Iceman (SN: 3/24/12, p. 5) included roughly 4 to 4.5 percent Neandertal genes. Modern Europeans’ genetic library includes an average of 2.5 percent Neandertal genes. Human groups that migrated into Europe after 5,000 years ago mated with continental natives and diluted traces of Neandertal genetic ancestry...
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Because some of the scrolls were written on animal hide, Seidl explained, experts since the mid-1990s have been able to establish a specific "genetic fingerprint" that can identify the species and even an individual animal to further aid in matching scroll fragments. Geology played a critical if indirect role in protecting the scrolls over the millennia. The Dead Sea is the lowest point on the planet's surface. It's also one the saltiest places on Earth, which isn't so great for living things but helps keep other things in the area -- such as papyrus or skin documents -- from deteriorating......
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Click Video- Learn how DNA was able to sort out and match the DDS fragments
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When the British archaeologist Sir Arthur Evans discovered the 4,000-year-old Palace of Minos on Crete in 1900, he saw the vestiges of a long-lost civilization whose artefacts set it apart from later Bronze-Age Greeks. The Minoans, as Evans named them, were refugees from Northern Egypt who had been expelled by invaders from the South about 5,000 years ago, he claimed. Modern archaeologists have questioned that version of events, and now ancient DNA recovered from Cretan caves suggests that the Minoan civilization emerged from the early farmers who settled the island thousands of years earlier....
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EXPERTS FIND RARE ROMANI DNA IN NORWICH ANGLO SAXON SKELETON By Sarah Morley 12/05/2006 The recent discovery of Romani DNA in an Anglo Saxon skeleton has made experts re-think the nature of the city's early population. Picture courtesy Sophie Cabot. © HEART Experts from Norfolk Archaeology Unit based at Norwich Castle have discovered a rare form of mitochondrial DNA identified as Romani in a skeleton discovered during excavations in a large area of Norwich for the expansion of the castle mall. The DNA was found in an 11th century young adult male skeleton, and with the first recorded arrival of...
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Summer 2000 (8.2) Scandinavian AncestryTracing Roots to Azerbaijan by Thor HeyerdahlAbove: Thor Heyerdahl with Peruvian children who still construct traditional boats made of reeds, the principle material that enabled early migrations on trans-oceanic voyages. Courtesy: Thor Heyerdahl.Archeologist and historian Thor Heyerdahl, 85, has visited Azerbaijan on several occasions during the past two decades. Each time, he garners more evidence to prove his tantalizing theory - that Scandinavian ancestry can be traced to the region now known as Azerbaijan.Heyerdahl first began forming this hypothesis after visiting Gobustan, an ancient cave dwelling found 30 miles west of Baku, which is ...
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We're nearly all Celts under the skin IAN JOHNSTON SCIENCE CORRESPONDENT A MAJOR genetic study of the population of Britain appears to have put an end to the idea of the "Celtic fringe" of Scotland, Ireland and Wales. Instead, a research team at Oxford University has found the majority of Britons are Celts descended from Spanish tribes who began arriving about 7,000 years ago. Even in England, about 64 per cent of people are descended from these Celts, outnumbering the descendants of Anglo- Saxons by about three to one. The proportion of Celts is only slightly higher in Scotland, at...
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Hellow man, Don`t mind my bad English. Firstly I want to make clear that the berber(we call oure self Amazigh) wich means free people are NOT Lybians!! There are berber tribes in Libia butt that is it. I am from berber origin (Atlas Mountains Morocco) now living in Holland. I am trying to search my identity. I red some artikels obout the Picts Living in Scotland that I found very interesting. I also red in another artikel written by a Scottish missionary, he wrote the article "The Berber oure distant cousins". I know that the Scottish people are a proud...
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Scientific evidence of an ancient invasion of Scotland from Ireland may have been uncovered by DNA techniques. Researchers from Edinburgh University said studies of Scots living on Islay, Lewis, Harris and Skye found strong links with Irish people. Early historical sources recount how the Gaels came from Ireland about 500 AD and conquered the Picts in Argyll. Scientists said the study was the first demonstration of a significant Irish genetics component in Scots' ancestry. The research, which features work by geneticist Dr Jim Wilson, a specialist in population genetics, is being featured in programmes on Gaelic television channel BBC Alba....
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Until recently historians had believed that Fortriu -- one of the most powerful Kingdoms of the “painted people” -- had been based in Perthshire. But recent research has now placed the Pictish stronghold much further north to the Moray Firth area. And it was revealed today that a team of archaeologists from Aberdeen University are to embark on a series of excavations on the Tarbat peninsula in Ross-shire where archaeologists have already uncovered evidence of the only Pictish monastic settlement found in Scotland to date... The team of archaeologists also plan to examine the Pictish cross slabs found at Shandwick,...
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Young Earth Creationists use Archbishop James Ussher’s chronology to date the age of the earth. They believe that the genealogies in Genesis 5 and 11 are chronological, enabling them to arrive at an approximate date of creation of the whole universe. They calculate the earth's age at 6000 years on the basis of ages assigned to these rulers. Ussher failed to recognize that the so-called "genealogies" are King Lists. These are not the first humans on earth, but rulers of the Afro-Asiatic Dominion. The Genesis 4 and 5 lists represent a time of kingdoms, laws, warriors, weapons, settlements, shrine cities...
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From Ireland to the Balkans, Europeans are basically one big family, closely related to one another for the past thousand years, according to a new study of the DNA of people from across the continent. The study, co-authored by Graham Coop, a professor of evolution and ecology at the University of California, Davis, will be published May 7 in the journal PLoS Biology. "What's remarkable about this is how closely everyone is related to each other. On a genealogical level, everyone in Europe traces back to nearly the same set of ancestors only a thousand years ago," Coop said. "This...
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During the 1990s, Welsh professor Tudor Parfitt, known around the world as the “British Indiana Jones,” discovered evidence that the Lemba tribe in central Zimbabwe and northern South Africa has Jewish roots. He identified a genetic element in the male chromosomes of the tribe that comes from the Kohanim, the Jewish priestly line. This year, Dr. Parfitt published his latest of 25 books, Black Jews in Africa and the Americas. He also joined the faculty of Florida International University (FIU) and led an expedition to Papua New Guinea to visit the Gogodala tribe, which like the Lemba claims to be...
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Genetic testing reveals awkward truth about Xinjiang’s famous mummies (AFP) 19 April 2005 URUMQI, China - After years of controversy and political intrigue, archaeologists using genetic testing have proven that Caucasians roamed China’s Tarim Basin 1,000 years before East Asian people arrived. The research, which the Chinese government has appeared to have delayed making public out of concerns of fueling Uighur Muslim separatism in its western-most Xinjiang region, is based on a cache of ancient dried-out corpses that have been found around the Tarim Basin in recent decades. “It is unfortunate that the issue has been so politicized because it...
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The mixing of two distinct lineages led to most modern-day Indians. The population of India was founded on two ancient groups that are as genetically distinct from each other as they are from other Asians, according to the largest DNA survey of Indian heritage to date. Nowadays, however, most Indians are a genetic hotchpotch of both ancestries, despite the populous nation's highly stratified social structure. "All Indians are pretty similar," says Chris Tyler-Smith, a genome researcher at the Wellcome Trust Sanger Institute near Cambridge, UK, who was not involved in the study. "The population subdivision has not had a dominating...
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What follows is initial evidence that links some people groups in Afghanistan, Kashmir, and Israel. It is thought provoking. HOWEVER, IN POSTING THIS, LET ME ENCOURAGE THE INTERESTED TO GO TO THE WEBSITE AND READ "OVERVIEW" IN WHICH THE CASE AGAINST THE TEN LOST TRIBES IS PRESENTED. Also, note that the "people of the book" as Mohammed called them (Christians or Jews), who converted to Islam, were considered by him to be totally Moslem and totally acceptable. The two sections below deal with Afghanistan and Kashmir. The Ten Lost Tribes: Afghanistan The Bible mentions the city of Medes as one ...
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Dr Steven Greer, who led the project and documentary, has hit back at critics who claim the body is a hoax. 'The CAT scan clearly shows internal chest organs -lungs and what appears to be the remains of a heart structure,' he said. 'There is absolutely no doubt that the specimen is an actual organism and that it is not a hoax of any kind. 'This fact has been confirmed by Dr. Nolan and Dr. Lachman at Stanford.'
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In his view, the culture that went on to dominate Mesoamerica until the arrival of Europeans got its start during a power vacuum that lasted for about 200 to 350 years in a period of Olmec rule. That allowed the people who built the ceremonial structure at a site known as Ceibal to interact with others from nearby areas and begin forming a new culture. They probably had influences from as far away as Chiapas and the Pacific Coast, both about 200 miles away. "Ceibal was a part of this major change," Inomata said. Inomata has been working at Ceibal,...
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The genetic makeup of Europe mysteriously transformed about 4,000-5,000 years ago, researchers have discovered. An Australian team found the unexplained change while analysing several skeletons unearthed in central Europe that were up to 7,500 years old. They say the rapid expansion of the Bell Beaker culture, which is believed to have been instrumental in building the monoliths at Stonehedge, could hold the key.
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Ancient DNA recovered from a series of skeletons in central Germany up to 7500 years old has been used to reconstruct the first detailed genetic history of modern Europe. The study, published today in Nature Communications, reveals a dramatic series of events including major migrations from both Western Europe and Eurasia, and signs of an unexplained genetic turnover about 4000-5000 years ago. The research was performed at the University of Adelaide's Australian Centre for Ancient DNA (ACAD). Researchers used DNA extracted from bone and teeth samples from prehistoric human skeletons to sequence a group of maternal genetic lineages that are...
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Vast stretches of Central Asia feel eerily uninhabited. Fly at 30,000 feet over... Turkmenistan, Uzbekistan, Kazakhstan -- and there are long moments when no town or road or field is visible from your window. Wandering bands and tribes roamed this immense area for 5,000 years, herding goat, sheep, cattle, and horses across immense steppes, through narrow valleys, and over high snowy passes. They left occasional tombs that survived the ages, and on rare occasions settled down and built towns or even cities. But for the most part, these peoples left behind few physical traces of their origins, beliefs, or ways...
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A London restaurant chain is offering customers free DNA testing to see if they're descended from Genghis Khan. Restaurant Shish has promised free meals for any found to be related to the notorious Mongol leader. The unusual promotion is to mark the Mongolian government's decision to allow citizens to have surnames for the first time since they were banned by the communists in the 1920s. Some 50,000 Mongolians now proudly claim direct descent from and bear the name of Genghis Khan. Shish has teamed up with DNA-based research company Oxford Ancestors to offer descendants food from their ancestral homelands. From...
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Published online: 24 October 2005Charlotte SchubertY chromosomes reveal founding fatherDid conquest and concubines spread one man's genes across Asia? The Manchu warriors took control of China in 1644. © Punchstock About 1.5 million men in northern China and Mongolia may be descended from a single man, according to a study based on Y chromosome genetics1. Historical records suggest that this man may be Giocangga, who lived in the mid-1500s and whose grandson founded the Qing dynasty, which ruled China from 1644 to 1912. The analysis is similar to a controversial study in 2003, which suggested that approximately 16 million men...
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REYKJAVIK, Iceland (AP) -- You meet someone, there's chemistry, and then come the introductory questions: What's your name? Come here often? Are you my cousin? In Iceland, a country with a population of 320,000 where most everyone is distantly related, inadvertently kissing cousins is a real risk. A new smartphone app is on hand to help Icelanders avoid accidental incest. The app lets users "bump" phones, and emits a warning alarm if they are closely related. "Bump the app before you bump in bed," says the catchy slogan. Some are hailing it as a welcome solution to a very Icelandic...
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The Real 'Hobbit' Had Larger Brain Than Thought Charles Choi, LiveScience Contributor Date: 16 April 2013 Time: 07:01 PM ETThe hobbit, Homo floresiensis, lived on the island of Flores some 18,000 years ago, and now researchers have more evidence (its relatively large brain) the diminutive creature was a unique human species. The brain of the extinct "hobbit" was bigger than often thought, researchers say. These findings add to evidence that the hobbit was a unique species of humans after all, not a deformed modern human, scientists added. The 18,000-year-old fossils of the extinct type of human officially known as Homo...
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A site in China contains 190-million-year old organic remains from non-avian dinosaurs and dinosaur embryos, and some of the world’s oldest known eggshells, according to a new study. The study, published in the journal Nature, reveals for the first time how dinosaur embryos grew, developed and moved around within their eggs. The organic remains -- collagen discovered in bone -- also fuel hopes that many mysteries about dinosaurs may be resolved in the not-too-distant future. “Our hope is that we may be able to recover collagen from these tissues in the future and do additional analyses,” project leader Robert Reisz...
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Recently, we have seen a surge of interest in identifying possible evolutionary links between primate facial communication and human speech (for example [1]). One suggestion is that primate ‘lip-smacking’ — a non-vocal, rhythmic movement of lips usually given in conjunction with affiliative behavior — may have been a precursor to speech [1]. This idea arose because lip-smacking shares several production features with human speech that the vocalizations of non-human primates lack, most notably a 3–8 Hz rhythm [1]. Evidence that non-human primates are indeed able to vocalize while simultaneously producing rhythmic facial movements would lend initial, but important, support to...
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Researchers at Lund University in Sweden have discovered a new protein that controls the presence of the Vel blood group antigen on our red blood cells. The discovery makes it possible to use simple DNA testing to find blood donors for patients who lack the Vel antigen and need a blood transfusion. Because there has not previously been any simple way to find these rare donors, there is a global shortage of Vel-negative blood. The largest known accumulation of this type of blood donor is found in the Swedish county of Västerbotten, which exports Vel-negative blood all over the world....
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Scientists claim to have identified the missing link between human speech and monkey chatter. Researchers analysed the distinctive "lip-smacking" sounds made by wild gelada baboons of the Ethopian highlands and found striking similarities to human speech. Their noises are so human-like that Thore Bergman, an assistant professor with the University of Michigan, thought he heard people talking while he was hanging out with the creatures. "I would find myself frequently looking over my shoulder to see who was talking to me, but it was just the geladas," he said. "It was unnerving to have primate vocalizations sound so much...
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A mutation that gives people rock-bottom cholesterol levels has led geneticists to what could be the next blockbuster heart drug. When Sharlayne Tracy showed up at the clinical suite in the University of Texas (UT) Southwestern Medical Center in Dallas last January, the bandage wrapped around her left wrist was the only sign of anything medically amiss. The bandage covered a minor injury from a cheerleading practice led by Tracy, a 40-year-old African American who is an aerobics instructor, a mother of two and a college student pursuing a degree in business. “I feel like I'm healthy as a horse,”...
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MAKING A MONSTER? The scientific work that can answer key risk questions is known as "gain of function" or GOF research. Its aim is to identify combinations of genetic changes, or mutations, that allow an animal virus to jump to humans. By finding the mutations needed, researchers and ultimately health authorities are better prepared to assess how likely it is that a new virus could become dangerous and if so how soon they should begin developing drugs, vaccines and other scientific defenses. Yet such work is highly controversial. When two teams of scientists announced in late 2011 they had found...
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— The human hand is a finely tuned piece of equipment that is capable of remarkable dexterity: creating art, performing music and manipulating tools. Yet David Carrier from the University of Utah suggests that the human hand may have also evolved its distinctive proportions for a less enlightened reason: for use as a weapon. In a new study, Carrier and colleague Michael Morgan publish their theory that human hands evolved their square palms and long thumb to stabilise the fist and produce a compact club for use in combat.
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Collaborators from Mayo-Illinois Alliance for Technology Based Healthcare have developed a new, single molecule test for detecting methylated DNA. Methylation -- the addition of a methyl group of molecules to a DNA strand -- is one of the ways gene expression is regulated. The findings appear in the current issue of Scientific Reports (Nature Publishing Group). "While nanopores have been studied for genomic sequencing and screening analysis, this new assay can potentially circumvent the need for some of the current processes in evaluating epigenetics-related diseases," says George Vasmatzis, Ph.D., co-leader of Mayo's Biomarker Discovery Program in the Center for Individualized...
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Ethical worries have slowed medical research into applications for stem cells. But scientists like Robert Lanza have developed less controversial ways to derive stem cells from normal body cells rather than embryos and are already launching the first clinical trials. … (T)here is a world premiere in the making: Lanza’s team has cultivated blood platelets that could be tested in hospitals as early as this year. The researcher and his team didn’t harvest the cells from embryonic stem cells, but rather from induced pluripotent stem (iPS) cells derived from normal body cells. …
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"No Friends but the Mountains" The Kurdish people comprise a large ethnic group of about 25 million that have always lived in the same place, and trace their roots back to the Medes of ancient Persia more than 2,500 years ago. In fact, the Magi, or "wise men" who traveled from the east to deliver their gold, frankincense and myrrh to the newborn Jesus at Bethlehem were most likely Zoroastrian priests, forbears of the modern Kurds. The Kurds are tribal people, many of them lived, until recently, a nomadic lifestyle in the mountainous regions of Turkey, Syria, Iraq and...
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"The Genetic Bonds Between Kurds and Jews"by Kevin Alan BrookKurds are the Closest Relatives of JewsIn 2001, a team of Israeli, German, and Indian scientists discovered that the majority of Jews around the world are closely related to the Kurdish people -- more closely than they are to the Semitic-speaking Arabs or any other population that was tested. The researchers sampled a total of 526 Y-chromosomes from 6 populations (Kurdish Jews, Kurdish Muslims, Palestinian Arabs, Sephardic Jews, Ashkenazic Jews, and Bedouin from southern Israel) and added extra data on 1321 persons from 12 populations (including Russians, Belarusians, Poles, Berbers, Portuguese,...
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Study could aid development of more effective vaccines. For the first time, scientists have tracked in a patient the evolution of a potent immune molecule that recognizes many different HIV viruses. By revealing how these molecules — called broadly neutralizing antibodies — develop, the research could inform efforts to make vaccines that elicit similar antibodies that can protect people from becoming infected with HIV. The researchers, led by Barton Haynes of Duke University School of Medicine in Durham, North Carolina, found that broadly neutralizing antibodies developed only after the population of viruses in the patient had diversified — something that...
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Teenager astounds scientists by building a DNA testing machine in his bedroom - and he did it to discover why his brother is ginger Fred Turner, 17, from Yorkshire built a DNA testing machine in his bedroomBuilt the polymerase chain reaction machine from items he found at homeWanted to see if his brother had the mutated gene that causes ginger hairExperiment was a success and proved why his brother is ginger and he isn'tFred was named the UK's Young Engineer of the Year for his design A teenager has astounded scientists by building a DNA testing machine in his bedroom...
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ATLANTA – Humans’ closest animal relatives, chimpanzees, have the ability to “think about thinking” – what is called “metacognition,” according to new research by scientists at Georgia State University and the University at Buffalo. Michael J. Beran and Bonnie M. Perdue of the Georgia State Language Research Center (LRC) and J. David Smith of the University at Buffalo conducted the research, published in the journal Psychological Science of the Association for Psychological Science. “The demonstration of metacognition in nonhuman primates has important implications regarding the emergence of self-reflective mind during humans’ cognitive evolution,” the research team noted. (snip) “There has...
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From the paper: In 1808 the Portuguese Crown declared “Just War” (Bellumiustum) against all Indian tribes that did not accept European laws (23). The fierce Botocudo were targeted in such wars and, in consequence, became virtually extinct by the end of the 19th century (24). Their importance for the history of the peopling of the Americas was revealed by studies reporting that the Botocudo had cranial features that consistently were described as intermediate between the polar Paleoamerican and Mongoloid morphologies (25, 26). Multivariate analyses of the cranial measures of different Amerindian and Paleoamerican groups from Brazil indeed concluded that the...
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The skeletal remains of an individual living in northern Italy 40,000-30,000 years ago are believed to be that of a human/Neanderthal hybrid, according to a paper in PLoS ONE. If further analysis proves the theory correct, the remains belonged to the first known such hybrid, providing direct evidence that humans and Neanderthals interbred. Prior genetic research determined the DNA of people with European and Asian ancestry is 1 to 4 percent Neanderthal. The present study focuses on the individual’s jaw, which was unearthed at a rock-shelter called Riparo di Mezzena in the Monti Lessini region of Italy. Both Neanderthals and...
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It's called "de-extinction," the act of bringing an extinct animal back to life by reassembling its genome and injecting it into embryonic cells. After that, it's the simple matter of finding a surrogate.
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We present an Aboriginal Australian genomic sequence obtained from a 100-year-old lock of hair donated by an Aboriginal man from southern Western Australia in the early 20th century. We detect no evidence of European admixture and estimate contamination levels to be below 0.5%. We show that Aboriginal Australians are descendants of an early human dispersal into eastern Asia, possibly 62,000 to 75,000 years ago. This dispersal is separate from the one that gave rise to modern Asians 25,000 to 38,000 years ago. We also find evidence of gene flow between populations of the two dispersal waves prior to the divergence...
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UA geneticists have discovered the oldest known genetic branch of the human Y chromosome – the hereditary factor determining male sex. The new divergent lineage, which was found in an individual who submitted his DNA to Family Tree DNA, a company specializing in DNA analysis to trace family roots, branched from the Y chromosome tree before the first appearance of anatomically modern humans in the fossil record. The results are published in the American Journal of Human Genetics. "Our analysis indicates this lineage diverged from previously known Y chromosomes about 338,000 ago, a time when anatomically modern humans had not...
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Scientists are reporting "laboratory resurrections" of several 2-3-billion-year-old proteins that are ancient ancestors of the enzymes that enable today's antibiotic-resistant bacteria to shrug off huge doses of penicillins, cephalosporins and other modern drugs. The achievement, reported in the Journal of the American Chemical Society, opens the door to a scientific "replay" of the evolution of antibiotic resistance with an eye to finding new ways to cope with the problem. Jose M. Sanchez-Ruiz, Eric A. Gaucher, Valeria A. Risso and colleagues explain that antibiotic resistance existed long before Alexander Fleming discovered the first antibiotic in 1928. Genes that contain instructions for...
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Researchers in Germany said Tuesday they have completed the first high-quality sequencing of a Neanderthal genome and are making it freely available online for other scientists to study. The genome produced from remains of a toe bone found in a Siberian cave is far more detailed than a previous "draft" Neanderthal genome sequenced three years ago by the same team at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. "The genome of a Neanderthal is now there in a form as accurate as that of any person walking the streets today," Svante Paabo, a geneticist who led the...
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A frog extinct for the last 30 years may be brought back to life. In a scientific breakthrough that has opened frontiers to saving species in catastrophic decline from becoming extinct, the genome of an extinct Australian frog has been revived and reactivated by a team of scientists using sophisticated cloning technology to implant a “dead” cell nucleus into an egg from another frog species. The bizarre gastric-brooding frog Rheobatrachus silus—which swallowed its eggs, brooding its young in its stomach and gave birth through its mouth—became extinct in 1983. The “Lazarus Project” team has been able to recover cell nuclei...
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It’s not exactly news that China is setting itself up as a new global superpower, is it? While Western civilization chokes on its own gluttony like a latter-day Marlon Brando, China continues to buy up American debt and lock away the world’s natural resources. But now, not content to simply laugh and make jerk-off signs as they pass us on the geopolitical highway, they’ve also developed a state-endorsed genetic-engineering project. At BGI Shenzhen, scientists have collected DNA samples from 2,000 of the world’s smartest people and are sequencing their entire genomes in an attempt to identify the alleles which determine...
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At BGI Shenzhen, scientists have collected DNA samples from 2,000 of the world’s smartest people and are sequencing their entire genomes in an attempt to identify the alleles which determine human intelligence. Apparently they’re not far from finding them, and when they do, embryo screening will allow parents to pick their brightest zygote and potentially bump up every generation's intelligence by five to 15 IQ points.
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Biologists briefly brought the extinct Pyrenean ibex back to life in 2003 by creating a clone from a frozen tissue sample harvested before the goat's entire population vanished in 2000. The clone survived just seven minutes after birth, but it gave scientists hope that "de-extinction," once a pipedream, could become a reality. Ten years later, a group of researchers and conservationists gathered in Washington, D.C., today (March 15) for a forum called TEDxDeExtinction, hosted by the National Geographic Society, to talk about how to revive extinct animals, from the Tasmanian tiger and the saber-toothed tiger to the woolly mammoth and...
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