Huge DNA code of the Christmas tree being revealed

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In this Wednesday, Nov. 28, 2012 photo, the Rockefeller Center Christmas tree is lit during the 80th annual tree lighting ceremony at Rockefeller Center in New York. Scientists are working to decipher the DNA code of conifers, like this Norway spruce at Rockefeller Center in New York. In late 2012, scientific teams in the United States and Canada have released preliminary, patchy descriptions of conifer genomes. And a Swedish team plans to follow suit soon in its quest for the Norway spruce. (AP Photo/Kathy Willens) Photo by
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