Best evidence yet that a single gene can affect IQ

Discussion in 'Science and Technology' started by ScienceRocks, Jul 18, 2012.

  1. ScienceRocks
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    ScienceRocks Blue dog all the way!

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    Best evidence yet that a single gene can affect IQ
    A massive genetics study relying on MRI brain scans and DNA samples from over 20,000 people has revealed what is claimed as the biggest effect yet of a single gene on intelligence – although the effect is small.
    There is little dispute that genetics accounts for a large amount of the variation in people's intelligence, but studies have consistently failed to find any single genes that have a substantial impact. Instead, researchers typically find that hundreds of genes contribute.
    Following a brain study on an unprecedented scale, an international collaboration has now managed to tease out a single gene that does have a measurable effect on intelligence. But the effect – although measurable – is small: the gene alters IQ by just 1.29 points. According to some researchers, that essentially proves that intelligence relies on the action of a multitude of genes after all.
    "It seems like the biggest single-gene impact we know of that affects IQ," says Paul Thompson of the University of California, Los Angeles, who led the collaboration of 207 researchers. "But it's not a massive effect on IQ overall," he says.

    Best evidence yet that a single gene can affect IQ - health - 16 April 2012 - New Scientist
     
  2. Moonglow
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    Moonglow Diamond Member

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    well maybe they can pin it down more and allow testing to see if we can increase intelligence through manipulation of the genes.
     

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