DNA, Rare E Form

DNA, Rare E Form

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Credit: KENNETH EWARD/BIOGRAFX/SCIENCE PHOTO LIBRARY

Caption: DNA can assume many shapes, the Watson-Crick B form being its most typical. The E form pictured is a stretched, eccentric variation caused by the insertion of small molecules such as methyl groups (starburst at center) into the double helix.

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Keywords: biochemical, biochemistry, computer model, computer models, dna, double helix, e dna, e form, genetic, genetics, methyl groups, methylation

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