Dna Is Like A Spiral Staircase

a: Dna ~
b: a spiral staircase

What: "DNA is like a spiral staircase, with each step of the staircase rising 0.34 nanometers and turning 36 degrees. Once you know how to build a single step and how each step connects to the next, you can build a molecule model of any length by just stacking copies of the step."

Writer: ernie wright
Where: Reference Link Has Evaporated
Date: Sep 21 2011 9:10 PM

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