News tagged with dna samples

Related topics: genetic variation

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

created Jan 25, 2010 | popularity 3.2 / 5 (21) | comments 13 | with audio podcast weblog

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 ...

Biology / Plants & Animals

created Nov 11, 2009 | popularity 4.7 / 5 (7) | comments 0

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 ...

Biology / Evolution

created Apr 29, 2009 | popularity 4.6 / 5 (18) | comments 2

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.

Medicine & Health / Genetics

created Mar 22, 2009 | popularity 5 / 5 (4) | comments 0

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 ...

Biology / Plants & Animals

created May 09, 2012 | popularity 4 / 5 (1) | comments 0 | with audio podcast

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 ...

Biology / Evolution

created Apr 30, 2012 | popularity 5 / 5 (10) | comments 1

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.

Biology / Plants & Animals

created Mar 26, 2012 | popularity 3.8 / 5 (5) | comments 0

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.

Biology / Other

created Mar 21, 2012 | popularity 4.4 / 5 (11) | comments 5

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.

Biology / Biotechnology

created Feb 14, 2012 | popularity 5 / 5 (1) | comments 1 | with audio podcast

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

created Oct 17, 2011 | popularity 4 / 5 (10) | comments 1 | with audio podcast report

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 ...

Biology / Plants & Animals

created Sep 22, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast report

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.

Biology / Evolution

created Sep 19, 2011 | popularity 4.8 / 5 (5) | comments 4 | with audio podcast

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

created Sep 12, 2011 | popularity 4 / 5 (10) | comments 4

New DNA analysis thousand times more sensitive

(PhysOrg.com) -- An international team of researchers has developed a new DNA technology which makes it possible to perform reliable analyses on DNA quantities that are a thousand times smaller than was previously the case. ...

Biology / Biotechnology

created Jun 17, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

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.

Medicine & Health / Genetics

created Apr 04, 2011 | popularity 3 / 5 (2) | comments 0 | with audio podcast