NEET BIOLOGY

Detailed explanation-1: -DNA is a polymer of nucleotides which are linked to each other by 3-5 phosphodiester bond.

Detailed explanation-2: -DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the adjacent nucleotide. The sugar is the 3’ end, and the phosphate is the 5’ end of each nucleiotide.

Detailed explanation-3: -Nucleotides are joined together similarly to other biological molecules, by a condensation reaction that releases a small, stable molecule.

Detailed explanation-4: -Specifically, the phosphodiester bond links the 3’ carbon atom of one sugar molecule and the 5’ carbon atom of another (hence the name, 3’, 5’ phosphodiester linkage). These saccharide groups are derived from deoxyribose in DNA and ribose in RNA.

Detailed explanation-5: -Answer and Explanation: Nucleotides are held together by phosphodiester bonds. Phosphodiester bonds are formed by the condensation of the 3’ OH group of a sugar on one nucleotide to the 5’ phosphate group of the next nucleotide.