AP BIOLOGY

Detailed explanation-1: -The bond joining two successive nucleotides in the same strand of DNA is called the phosphodiester bond. the phosphodiester bond is the linkage between the 3’ carbon atom of one sugar molecule and the 5’ carbon atom of another, deoxyribose in DNA and ribose in RNA.

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.

Detailed explanation-3: -Another way of defining the phosphodiester bond is that it is formed between any two adjacent nucleotides in a nucleic acid in which 5’ and 3’ hydroxyls of two adjacent sugars form a double ester with phosphoric acid.

Detailed explanation-4: -A phosphodiester bond is a linkage in which 3’ phosphate group of a nucleoside is linked to the 5’ hydroxyl group of another nucleoside. The direction is always from the 3’ to 5’ in nucleotides. Q. DNA is a polymer of nucleotides which are linked to each other by 3-5 phosphodiester bond.

Detailed explanation-5: -noun. : a covalent bond in RNA or DNA that holds a polynucleotide chain together by joining a phosphate group at position 5 in the pentose sugar of one nucleotide to the hydroxyl group at position 3 in the pentose sugar of the next nucleotide.