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Weekend


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October 8, 2004

Strange But True!

  • A weekly column of incidental information, off-the-wall observations and other random facts about the world.
    • By BILL SONES and RICH SONES, Ph.D.
    Special to the Journal

    Q. Why are identical twins not so identical after all?

    A. Identicality is a common misconception about single-egg twins, says University of Cambridge clinical anatomist David Bainbridge in "Making Babies: The Science of Pregnancy."  But it is essential to realize that they are never perfect replicas, because not only are their in-utero environments different but their genes are as well.


     
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