1. Tardigrade
  2. Question
  3. Biology
  4. 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.

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Q. 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.

NTA AbhyasNTA Abhyas 2020Molecular Basis of Inheritance

Solution:

DNA is a double helical structure and is antiparallel in nature. The nitrogen bases are perpendicular to the backbone and are linked to each other by a phosphodiester bond.