Two strands of a double helix model of DNA are held together by hydrogen bonds between

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5.Molecular Basis of Inheritance

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The two strands of a double helix model of $DNA$ are held together by hydrogen bonds between

sugar and phosphate groups.

sugar and nitrogenous bases.

phosphate groups and nitrogenous bases.

nitrogenous bases.

Solution

The two strands of a double helix model of $DNA$ are held together by hydrogen bonds between nitrogenous bases which help to stabilize the interaction. Adenine – thymine pair has two hydrogen bonds while guanine – cytosine pair has three hydrogen bonds.

Standard 12

Biology