Researchers report that they have found a direct genetic link between the remains of Native Americans who lived thousands of years ago and their living descendants. The team used mitochondrial DNA, which children inherit ...
Biotechnology
Jul 3, 2013
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Next time you successfully fight off a nasty infection, give thanks to the Great Barrier Reef. A dramatic discovery by an Australian team of scientists has revealed that the ability of humans to resist bacterial diseases ...
Biotechnology
Jul 1, 2013
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Although scientists have known since the middle of the 19th century that the tropics are teeming with species while the poles harbor relatively few, the origin of the most dramatic and pervasive biodiversity on Earth has ...
Earth Sciences
Jun 10, 2013
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Inbreeding is generally deleterious, even in flowering plants. Since inbreeding raises the risk that bad copies of a gene will be expressed, inbred progeny suffer from reduced viability.
Evolution
Jun 10, 2013
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According to researchers at Boston Children's Hospital, stem cells that strongly express a gene called WNT3 are biased to develop into cells and tissues including pancreas, liver and bladder. This discovery suggests that ...
Cell & Microbiology
Jun 4, 2013
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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.
Biotechnology
Apr 23, 2013
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The extraordinary level of conservation of the tulip tree (Liriodendron tulipifera) mitochondrial genome has redefined our interpretation of evolution of the angiosperms (flowering plants), finds research in biomed Central's ...
Biotechnology
Apr 14, 2013
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In mammals, an individual's sex is determined by the chromosomes it inherits from its parents. Two X chromosomes lead to a female, whereas one X and one Y lead to a male. Y chromosomes are only passed from fathers to sons, ...
Plants & Animals
Apr 4, 2013
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Scientists have decoded the genome of the western painted turtle (Chrysemys picta bellii) , one of the most abundant turtles on Earth, finding clues to their longevity and ability to survive without oxygen during long winters ...
Biotechnology
Mar 27, 2013
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(Phys.org) —A protein-folding simulation shows that the debated theory of long-term evolution is not only possible, but that the outcomes are predictable. The Stanford experiment provides a framework for testing evolutionary ...
Evolution
Mar 18, 2013
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