Category Archives: DNA

Decoding Ancient Bulgarian DNA - ASHG 2014 Poster Download the poster "Decoding Ancient Bulgarian DNA with Semiconductor-based Sequencing" on Slideshare: ... By: Life Technologies … Continue reading →

Spot DNA Spot Dna promocional. By: Pin Cout … Continue reading →

October 23, 2014, 8:20 am Paris (AFP) - Scientists said Wednesday they had unravelled the oldest DNA ever retrieved from a Homo sapiens bone, a feat that sheds light on modern humans' colonisation of the planet. A femur found by chance on the banks of a west Siberian river in 2008 is that of a man who died around 45,000 years ago, they said. Teased out of collagen in the ancient bone, the genome contains traces from Neanderthals -- a cousin species who lived in Eurasia alongside H. sapiens before mysteriously disappearing. Previous research has found that Neanderthals and H. sapiens interbred, leaving a tiny Neanderthal imprint of just about two percent in humans today, except for Africans. The discovery has a bearing on the so-called "Out of Africa" scenario: the theory that H. sapiens evolved in East Africa around 200,000 years ago and then ventured out of the continent. Dating when Neanderthals and H. sapiens interbred would also indicate when H. sapiens embarked on a key phase of this trek -- the push out of Eurasia and into South and later Southeast Asia. The new study, published in the journal Nature, was headed by Svante Paabo, a renowned geneticist … Continue reading →

The DNA from the 45,000-year-old bone of a man from Siberia is helping to pinpoint when modern humans and Neanderthals first interbred, researchers say. Although modern humans are the only surviving human lineage, others once lived on Earth. The closest extinct relatives of modern humans were the Neanderthals, who lived in Europe and Asia until they went extinct about 40,000 years ago. Recent findings revealed that Neanderthals interbred with ancestors of modern humans when modern humans began spreading out of Africa 1.5 to 2.1 percent of the DNA of anyone living outside Africa today is Neanderthal in origin. It remains uncertain when interbreeding between modern humans and Neanderthals occurred. Previous estimates of these events ranged from 37,000 to 86,000 years ago. [See Photos of Humanity's Closest Relative] Study researcher Svante Pbo examines a 45,000-year-old femur from a Siberian man that is helping scientists pinpoint when Neanderthals and modern humans interbred. To help solve this mystery, scientists analyzed the shaft of a thighbone found by an artist and mammoth ivory collector, Nikolai Peristov, on the left bank of the river Irtysh near the settlement of Ust'-Ishim in western Siberia in 2008. They calculated the age of the man's bone to be … Continue reading →

NELSON COUNTY, Va. (WRIC) - Beginning Wednesday, the FBI will be DNA testing the car Alexis Murphy was driving when she disappeared, to determine whether Jesse Matthew was in the car. Missing Nelson County teen Alexis Murphy disappeared in 2013. Even though these tests are slated to start this week, it remains unclear when those DNA test results will be released. Earlier this month, an attorney for Randy Taylor, the man convicted for the murder of Murphy, asked investigators to do new DNA testing to check for a possible link between Matthew, whose charged with the abduction of missing UVa. student Hannah Graham and a 2005 Fairfax rape, and Murphy. Michael Hallahan, Taylor's attorney, sent a letter to the Nelson County commonwealth's attorney requesting DNA tests to investigate a possible link between the two cases. "Alexis Murphy's family members testified at Randy Taylor's trial that Alexis would have NEVER gone to Taylor's residence without someone else being with her. Alexis Murphy's friends testified that she liked older men (Matthew being about 12 years older) and she was very active on social media, having thousands of friends and followers," the letter reads. Hallahan said that according to testimony and evidence, Murphy … Continue reading →

By Charles Q. Choi A Late Bronze Age burial from the site of Ludas-Varj-dulo, Hungary dated to about 1200 B.C. This individual marks the onset of lactose tolerance in the region.(Janos Dani (Deri Museum, Debrecen, Hungary)) The DNA from ancient human bones is shedding new light on the prehistory of Europe, such as when changes in skin color and lactose tolerance occurred, researchers say. This research unexpectedly revealed that ancient Europeans started dairying thousands of years before they evolved genes to make the most of milk in adulthood, investigators added. Scientists examined ancient DNA extracted from 13 individuals in archaeological burial sites unearthed during highway construction in the Great Hungarian Plain in Central Europe. This crossroads for Eastern and Western cultures experienced significant transformations in culture and technology known to have shaped European prehistory. The bones at the site span about 5,000 years, from 5,700 B.C. to 800 B.C., ranging across the Stone, Copper, Bronze and Iron Ages. [Image Gallery: Our Closest Human Ancestor Revealed] After several years of experimentation with a variety of kinds of bones, the researchers discovered the best place to recover ancient DNA for analysis in humans is the petrous bone, a pyramidal bone at the … Continue reading →

Lecture: ATP Synthesis and Intro to DNA Proof of chemiosmotic theory, function of ATP synthase (apologies for art skills), DNA structure, DNA replication (MS Theory). Typo: a really LOW pH solution. Email me if you have any questions. By: Kevin Vo … Continue reading →

Wanessa - Sem Querer "DNA TOUR RELOADED" (FLEXX CLUB 18-10-14) FULL HD - BY LEH SANUTY Wanessa - Sem Querer (FLEXX CLUB 18-10-14) FULL HD - BY LEH SANUTY. By: Leh Sanuty … Continue reading →

Maurice Gleeson - Which DNA test is best for you? There are three main types of DNA test that can help you with your family tree research. Which test is best for you very much depends on what question you want the answer to. In brief, if you... By: Genetic Genealogy Ireland … Continue reading →

Baby Alien in Mexico (DNA tests and scans baffles scientists) Baby Alien in Mexico. By: mladeninho … Continue reading →