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Tandem repeats take, make shape
Email: Melissa Phillips - mlphilli@u.washington.edu News from The Scientist 2004, 5(1):20041214-01
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Tandem repeats of sequences in developmental genes may contribute to morphological evolution, according to a paper in this week's PNAS. John W. Fondon, III, and Harold R. Garner of the University of Texas, Southwestern, show that different lengths of coding repeats in dogs correlate with morphological differences in the dogs' skulls and limbs. They also show that many other animals—including humans—have similar repeat length variation in their developmental genes.
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