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    <title>Alan Turing's 1950s tiger stripe theory proved</title>
    <dc:date>2012-02-21T18:22:42+00:00</dc:date>
    <link>http://www.physorg.com/news/2012-02-alan-turing-1950s-tiger-stripe.html</link>
    <dc:creator>ernie.bornheimer</dc:creator><description><![CDATA['Regularly spaced structures, from vertebrae and hair follicles to the stripes on a tiger or zebrafish, are a fundamental motif in biology. There are several theories about how patterns in nature are formed, but until now there was only circumstantial evidence for Turing's mechanism. Our study provides the first experimental identification of an activator-inhibitor system at work]]></description>
<dc:subject>biology embryology development Turing stripes repitition evolution science</dc:subject>
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