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Questions  

Select the wrong statements with respect to DNA.

I   The backbone of DNA is formed by the sugar-phosphate chain.

II  The two strands of the polynucleotide  are anti-parallel.

III  The nitrogen bases are parallel to the backbone.

IV The backbone contains a hydrogen bond.

a
I and II
b
III and IV
c
II and III
d
I and IV

detailed solution

Correct option is B

The nitrogen bases are perpendicular to the backbone. It has several hydrogen bonds.

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