 
			 
			MCQOPTIONS
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				| 1. | The B-DNA structure found in solution is a | 
| A. | left-handed double helix of antiparallel chains (10 bp/turn) | 
| B. | right-handed double helix of antiparallel chains (∼10 bp/turn) | 
| C. | left-handed zig-zag helix of antiparallel chains (10 bp/turn) | 
| D. | right-handed double helix of parallel chains (∼10 bp/turn) | 
| Answer» C. left-handed zig-zag helix of antiparallel chains (10 bp/turn) | |