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Q.

The backbone of a polynucleotide chain is formed due to

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a

nitrogenous bases and sugar

b

sugar and phosphate

c

nitrogenous bases and phosphate

d

nitrogenous bases only

answer is B.

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Detailed Solution

The backbone of a polynucleotide chain is formed due to sugar and phosphates. The nitrogenous bases linked to sugar moiety project from the backbone.

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