Freeze-drying turned a woolly mammoth’s DNA into 3-D ‘chromoglass’
Science News » Genetics
by Tina Hesman Saey
1w ago
A new technique for probing the 3-D structure of ancient DNA may help scientists learn how extinct animals functioned, not just what they looked like ..read more
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The last woolly mammoths offer new clues to why the species went extinct
Science News » Genetics
by Claire Yuan
2w ago
The last population of woolly mammoths did not go extinct 4,000 years ago from inbreeding, a new analysis shows ..read more
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Child sacrifices at famed Maya site were all boys, many closely related
Science News » Genetics
by Bruce Bower
1M ago
DNA analysis shows victims in one underground chamber at Chichén Itzá included twins, perhaps representing mythological figures ..read more
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Scientists are fixing flawed forensics that can lead to wrongful convictions
Science News » Genetics
by Amber Dance
1M ago
People have been wrongly jailed for forensic failures. Scientists are working to improve police lineups, fingerprinting and even DNA analysis ..read more
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Thomas Cech’s ‘The Catalyst’ spotlights RNA and its superpowers
Science News » Genetics
by Meghan Rosen
1M ago
Nobel Prize-winning biochemist Thomas Cech’s new book is part ode to RNA and part detailed history of the scientists who’ve studied it ..read more
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50 years ago, chimeras gave a glimpse of gene editing’s future
Science News » Genetics
by Abby Wallace
1M ago
Advances in gene editing technology have led to the first successful transplant of a pig kidney into a human ..read more
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The largest known genome belongs to a tiny fern
Science News » Genetics
by Jake Buehler
1M ago
Though 'Tmesipteris oblanceolata' is just 15 centimeters long, its genome dwarfs humans’ by more than 50 times ..read more
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Here’s why some pigeons do backflips
Science News » Genetics
by Tina Hesman Saey
3M ago
Meet the scientist homing in on the genes involved in making parlor roller pigeons do backward somersaults ..read more
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Ancient viruses helped speedy nerves evolve
Science News » Genetics
by Tina Hesman Saey
5M ago
Ancient viruses have really gotten on our nerves, but in the best of ways. One particular retrovirus — embedded in the DNA of jawed vertebrates — helps turn on production of a protein needed to insulate nerve fibers, researchers report February 15 in Cell. Such insulation, called myelin, may have helped make speedy thoughts and complex brains possible. The retrovirus trick was so handy, in fact, that it showed up many times in the evolution of vertebrates with jaws, the team found. Retroviruses — also known as jumping genes or retrotransposons — are RNA viruses that make DNA copies of themselv ..read more
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Newfound immune cells are responsible for long-lasting allergies
Science News » Genetics
by Tina Hesman Saey
5M ago
Allergy sufferers may one day be able to erase the source of their congestion, itchy skin and swollen lips and throat thanks to two studies that have uncovered elusive immune cells that maintain allergies over the long haul, often for a lifetime. A specialized type of immune cell called type 2 memory B cells or MBC2s hold the memory of proteins that cause allergies, two independent groups of researchers report February 7 in Science Translational Medicine. Memory B cells are important for long-lasting protection against infectious diseases, but this subset is primed to make the type of antibodi ..read more
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