Question

The type of linkage present between nucleotides is :

• A. Phosphoester linkage
• B. Phosphodiester linkage
• C. Amide linkage
• D. Glycosidic linkage

Answer 1

The Correct Option is B

• In nucleic acids like DNA and RNA, the nucleotides are linked together by phosphodiester linkages. This bond forms between the phosphate group of one nucleotide and the sugar (deoxyribose or ribose) of the next nucleotide.
• The phosphodiester bond involves a phosphate group linking the 3' carbon atom of one sugar molecule to the 5' carbon atom of another sugar molecule.

Thus, the type of linkage present between nucleotides is phosphodiester linkage, making option (B) the correct answer.