What kind of bonds connect the bases of DNA to each other?

a. ionic

b. hydrogen

c. covalent

d. van der Waals

e. protonic

The correct answer will be option-B.

Explanation:

Deoxyribose nucleic acid or DNA is the genetic material of the organism which is made up of nucleotide monomer. Each monomer is made up of a five-carbon deoxyribose sugar, a phosphate group and four different nitrogenous bases.

The nitrogenous bases - purines (adenine and guanine) bond with pyrimidines (cytosine and thymine) via hydrogen bond between them. The hydrogen bonds are weak bonds but establish the DNA structure.

Thus, Option-B is the correct answer.