"Susan Lolle, Robert Pruitt and their colleagues have shown that a significant percentage of a watercress Arabidopsis) plant's 'grandchildren had genetic information identical to that of the grandparent, but not the parent, and postulate that the “lost” genetic information resides outside the standard genome and is only retrieved when it may be beneficial.
The information was not lost, but rather “hidden” from scientists.'
From Science Daily, 28 Mar 2005. See also the earlier Wired news article.
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