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