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  4. The 3′ - 5′ phosphodiester linkages inside a polynucleotide chain serve to join

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Q. The 3′ - 5′ phosphodiester linkages inside a polynucleotide chain serve to join

JIPMERJIPMER 2012Molecular Basis of Inheritance

Solution:

A phosphodiester bond is formed between the phosphate group, which is connected to carbon 5′ of the sugar residue of one nucleotide, and the hydroxyl group attached to carbon 3′ of the sugar residue of the next nucleotide.