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Technique aims to cut disease-causing mutations out of eggs and embryos

Technique aims to cut disease-causing mutations out of eggs and embryos
Your mother may have given you her eyes, but she could have also given you mitochondrial DNA that carries disease-causing mutations. A study in mice shows that two techniques can drastically reduce the amount of this potentially harmful DNA in eggs and embryos, thus potentially sparing children from the illnesses. The methods could provide alternatives…
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Mammoth genome sequence completed

Mammoth genome sequence completed
An international team of scientists has sequenced the complete genome of the woolly mammoth. A US team is already attempting to study the animals' characteristics by inserting mammoth genes into elephant stem cells. They want to find out what made the mammoths different from their modern relatives and how their adaptations helped them survive the…
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40 million-year-old family tree of baleen whales

40 million-year-old family tree of baleen whales
New University of Otago research is providing the most comprehensive picture of the evolutionary history of baleen whales, which are not only the largest animals ever to live on earth, but also among the most unusual. Most other mammals feed on plants or grab a single prey animal at a time, but baleen whales are…
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Two ancient human fossils from Laos reveal early human diversity

Two ancient human fossils from Laos reveal early human diversity
An ancient human skull and a jawbone found a few meters away in a cave in northern Laos add to the evidence that early modern humans were physically quite diverse, researchers report in PLOS ONE. The skull, found in 2009 in a cave known as Tam Pa Ling in the Annamite Mountains of present-day Laos, and…
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How Europeans evolved white skin

How Europeans evolved white skin
Most of us think of Europe as the ancestral home of white people. But a new study shows that pale skin, as well as other traits such as tallness and the ability to digest milk as adults, arrived in most of the continent relatively recently. The work, presented here last week at the 84th annual…
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New study hints at spontaneous appearance of primordial DNA

New study hints at spontaneous appearance of primordial DNA
The self-organization properties of DNA-like molecular fragments four billion years ago may have guided their own growth into repeating chemical chains long enough to act as a basis for primitive life, says a new study by the University of Colorado Boulder and the University of University of Milan. While studies of ancient mineral formations contain…
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Common bacteria on verge of becoming antibiotic-resistant superbugs

Common bacteria on verge of becoming antibiotic-resistant superbugs
Antibiotic resistance is poised to spread globally among bacteria frequently implicated in respiratory and urinary infections in hospital settings, according to new research at Washington University School of Medicine in St. Louis. The study shows that two genes that confer resistance against a particularly strong class of antibiotics can be shared easily among a family…
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