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....
View Full Document
- Spring '10
- DNA, uniform diameter, highly repetitive structure