Phosphodiester bond links two nucleotides together and maintains polarity which refers to

A.            the 5′ hydroxyl group of pentose of one nucleotide to 3′ hydroxyl group of adjacent nucleotide through a phosphate group.

B.            5′ end with a phosphate group and 3’end with hydroxyl are free.

C.            addition of new nucleotide occurs via attachment of 5′ phosphate group of new nucleotide to 3′ phosphate group of an existing chain.

D.            All of the above

Answer: All of the above

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