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Unformatted text preview: DNA was double strand (because of the 2 nm diameter) with a helical ladder-like structure. To maintain the uniform diameter, a double-ring base probably would pair with a single-ring base along the length of the molecule Adenine can hydrogen bond to thymine at 2 places. Guanine can hydrogen bond to cytosine at 3 places This explained Chargaff's findings that the amounts of adenine and thymine were the same, and the amounts of guanine and cytosine were the same for a species....
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.
- Spring '10