Tagged With genetics

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The origin of the AIDS pandemic has been reconstructed in unprecedented detail, showing the disease jumped from the Caribbean to New York City around 1970. The new study subsequently clears the name of Gaétan Dugas, a French-Canadian flight attendant long-thought to be "Patient Zero".

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Centuries-old theories surrounding human height as it correlates to evolution have stated two things: Those closer to the equator were more linear and longer, while people who lived closer to the poles were wider and shorter, but generally bigger. This is according to Allen's Rule and Bergmann's Rule, which were both proposed during the 19th century.

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The English Bulldog is one of the most popular dog breeds in the world, but it's also one of the unhealthiest. An upsetting new analysis now shows that these stocky, wrinkly-faced dogs lack the genetic diversity required to improve the breed, and that their current level of health is as good as it's ever going to get.

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Controversy has long surrounded the presumed accidental death of Belgium's King Albert I in 1934, with conspiracy theorists crying murder. Now, 80 years later, forensic geneticists have successfully matched DNA< from blood found at the scene of his death with that of two of the late king's distant relatives, hopefully resolving the mystery once and for all.

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Hundreds of millions of years ago, a tiny green microbe joined forces with a fungus, and together they conquered the world. It's a tale of two cross-kingdom organisms, one providing food and the one other shelter, and it's been our touchstone example of symbiosis for 150 years. The trouble is, that story is nowhere near complete.

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Clinical trials of a promising new therapy, in which white blood cells are reprogrammed to attack cancer cells, has resulted in the deaths of three patients. In response, the US Food and Drug Administration has ordered a temporary halt to the trial.

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Homo sapiens evolved about 200-150,000 years ago in Africa, but our story as a species stretches back much further than that with early human ancestors. And the evolution of Homo sapiens is itself a tangled tale, full of unanswered questions and gothic family melodrama. Here are a few facts you may not know about the human evolutionary story.

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Using the CRISPR gene-editing tool, scientists from Harvard University have developed a technique that permanently records data into living cells. Incredibly, the information imprinted onto these microorganisms can be passed down to the next generation.

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The precise origin of our canine companions is mired in controversy. But a new study suggests that dogs emerged from not one but two different populations of ancient wolves. What's more, this dual domestication happened on opposite sides of the Eurasian continent.

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Scientists say that a groundbreaking fertility treatment to correct potentially harmful genetic mutations has the potential to backfire, recreating the exact mutation the intervention was meant to fix. It's a problem that could put an immediate halt to the pending practice — but a work-around may be possible.