Answer: The average molar mass of one base pair of
Chapter 21, Problem 21.127(choose chapter or problem)
The average molar mass of one base pair of nucleotides in DNA is approximately 600 g/mol. The spacing between successive base pairs is about 0.34 nm, and a complete turn in the helical structure of DNA occurs about every 3.4 nm. If a DNA molecule has a molar mass of 4.5 3 109 g/mol, approximately how many complete turns exist in the DNA a-helix structure?
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