News tagged with dna samples
Related topics: genetic variation
Whale population size, dynamics determined based on ancient DNA
Estimates of whale population size based on genetics versus historical records diverge greatly, making it difficult to fully understand the ecological implications of the large-scale commercial whaling of the 19th and early ...
May 09, 2012 |
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A new glimpse into ancient human history
Analyzing DNA from four ancient skeletons and comparing it with thousands of genetic samples from living humans, a group of Scandinavian scientists reported that agriculture initially spread through Europe because farmers ...
Apr 30, 2012 |
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Indonesian 'Eves' colonised Madagascar 1,200 years ago
Several dozen Indonesian women founded the colonisation of Madagascar 1,200 years ago, scientists said on Wednesday in a probe into one of the strangest episodes in the human odyssey.
Mar 21, 2012 |
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Is the Mona Lisa a Self-Portrait?
(PhysOrg.com) -- Italian scientists hope to dig up the remains of Leonardo da Vinci in order to determine if his most famous painting, the Mona Lisa, is a disguised self-portrait.
Other Sciences / Archaeology & Fossils
Jan 25, 2010 |
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Many meat-eating mammals lack sweet tooth, study finds
For all their sharp teeth, many meat-eating mammals lack a sweet tooth, a genetic analysis of a dozen species has shown.
Mar 26, 2012 |
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Ancient Greek ships traded more than just wine
(PhysOrg.com) -- While many historians have assumed that Greek sailors were using amphorae, or ancient storage containers, to transport and trade wine, new DNA testing is providing evidence that these containers ...
Other Sciences / Archaeology & Fossils
Oct 17, 2011 |
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Human-Neanderthal coupling was rare: study
Scientists have shown that modern humans have some traces of genes from Neanderthals, but a study out Monday suggests that any breeding between the two was most likely a rare event.
Other Sciences / Archaeology & Fossils
Sep 12, 2011 |
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Saltwater crocodile breeders to benefit from genome sequence
(PhysOrg.com) -- The genome sequence of the saltwater crocodile has been completed by an international collaboration of scientists, including researchers from the University of Sydney.
Feb 14, 2012 |
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Africa's rarest monkey had an intriguing sexual past, DNA study confirms
The most extensive DNA study to-date of Africa's rarest monkey reveals that the species had an intriguing sexual past. Of the last two remaining populations of the recently discovered kipunji, one population ...
Nov 11, 2009 |
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Native Americans descended from a single ancestral group, DNA study confirms
For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral ...
Apr 29, 2009 |
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Bowhead whales using the Northwest Passage
(PhysOrg.com) -- According to a new study published in Biology Letters, the climate changes and melting of ice in the Northwest Passage are leading to the mingling of two bowhead whale populations that have b ...
Sep 22, 2011 |
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Scientists ID ten genes associated with a risk factor for sudden cardiac death
(PhysOrg.com) -- One minute, he's a strapping 40-year-old with an enviable cholesterol level, working out on his treadmill. The next, he's dead.
Mar 22, 2009 |
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New technique fills gaps in fossil record
University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.
Sep 19, 2011 |
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DNA match fingers suspect 14 years after murder
A DNA match led to the arrest of a man accused of murdering a teenaged New York girl 14 years ago in what had been an unsolved case, city prosecutors said Thursday.
May 10, 2012 |
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Scientists find gene linked to alcohol consumption
Scientists have identified a gene that appears to play a role in regulating how much alcohol people drink, in a study of over 47,000 people published today in Proceedings of the National Academy of Sciences.
Apr 04, 2011 |
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