News tagged with genetic evidence
Alan Turing's 1950s tiger stripe theory proved
Researchers from King's College London have provided the first experimental evidence confirming a great British mathematician's theory of how biological patterns such as tiger stripes or leopard spots are ...
Feb 19, 2012 |
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Research team finds new explanation for Cambrian explosion
(PhysOrg.com) -- For hundreds of years, researchers from many branches of science have sought to explain the veritable explosion in diversity in animal organisms that started approximately 541 million years ...
Space & Earth / Earth Sciences
Nov 29, 2011 |
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New genetic study helps to solve Darwin's mystery about the ancient evolution of flowering plants
(PhysOrg.com) -- The evolution and diversification of the more than 300,000 living species of flowering plants may have been "jump started" much earlier than previously calculated, a new study indicates. According ...
Apr 10, 2011 |
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Wildflower colors tell butterflies how to do their jobs
(PhysOrg.com) -- The recipe for making one species into two requires time and some kind of separation, like being on different islands or something else that discourages gene flow between the two budding species.
Jan 09, 2011 |
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Fish out of water: Gene clue to evolutionary step
Two genes controlling a tissue protein may have played a role in the key period when fish shed their fins and became limbed land-lovers, a study published by Nature on Thursday said.
Jun 24, 2010 |
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Ancient penguin DNA raises doubts about accuracy of genetic dating techniques
Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches have been ...
Nov 10, 2009 |
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Study: Cancer may pass from mother to unborn child
(PhysOrg.com) -- A new study has provided genetic evidence for the first time that it is possible for a mother to transmit cancer to her unborn child via the placenta.
Oct 14, 2009 |
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Scientists reveal family tree of 'super-sized lions'
(PhysOrg.com) -- The giant cats that roamed the British Isles, as well as Europe and North America, as recently as 13,000 years ago were lions rather than giant jaguars or tigers, a team led by Oxford University ...
Mar 31, 2009 |
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First Americans arrived as 2 separate migrations, according to new genetic evidence
The first people to arrive in America traveled as at least two separate groups to arrive in their new home at about the same time, according to new genetic evidence published online on January 8th in Current Biology, a Cell ...
Biology /
Jan 08, 2009 |
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Study solves mystery of horse domestication
New research indicates that domestic horses originated in the steppes of modern-day Ukraine, southwest Russia and west Kazakhstan, mixing with local wild stocks as they spread throughout Europe and Asia. The research was ...
May 07, 2012 |
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Antarctic octopus tells story of ice-sheet collapse
Scientists have long been concerned that the massive West Antarctic Ice Sheet could collapse if global temperatures keep climbing. If it did, sea levels are predicted to rise by as much as five meters.
Space & Earth / Earth Sciences
May 07, 2012 |
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lobSTR algorithm rolls DNA fingerprinting into 21st century
As any crime show buff can tell you, DNA evidence identifies a victim's remains, fingers the guilty, and sets the innocent free. But in reality, the processing of forensic DNA evidence takes much longer than a 60-minute primetime ...
Apr 27, 2012 |
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Seed size is controlled by maternally produced small RNAs: research
Seed size is controlled by small RNA molecules inherited from a plant's mother, a discovery from scientists at The University of Texas at Austin that has implications for agriculture and understanding plant ...
Apr 11, 2012 |
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Head and body lice appear to be the same species, genetic study finds
A new study offers compelling genetic evidence that head and body lice are the same species. The finding is of special interest because body lice can transmit deadly bacterial diseases, while head lice do ...
Apr 09, 2012 |
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Genetic study unravels ancient links between African and European populations
Large numbers of people moved between Africa and Europe during recent and well-documented time periods such as the Roman Empire, the Arab conquest, and the slave trade, and genetic evidence of these migrations lives on in ...
Mar 26, 2012 |
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