Question

Which of the following does not confer stability to the helical structure of DNA?

1) Phosphodiester bond
2) H-bond
3) N-glycosidic bond
4) More than one option is correct

Answer 1

N-glycosidic linkage

Answer 2

Answer:

N - glycosidic bond does not confer stability to the helical structure of DNA.

Explanation:

Phosphodiester bond  is the linkage between carbon atoms in a sugar molecules of DNA and RNA.

H - bond is hydrogen bond that plays a major role in the stability of DNA as it is present between nucleotide molecules of DNA.

N - Glycosidic bond is the bond that binds carbohydrates to other molecules. So this bond does not play any role in the stability of DNA.