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1. |
In DNA, nucleotides are covalently joined together by |
A. | 3', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain |
B. | 2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain |
C. | 2', 3' phosphodiester bonds to form a repetitive sugar-phosphate chain |
D. | 3', 4' phosphodiester bonds to form a repetitive sugar-phosphate chain |
Answer» B. 2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain | |