Question

In proteins, amino acids are linked by peptide bonds; in polynucleotides, nucleotides are linked by ________.

Answer 1

Answer: Phosphodiester bond

Explanation:

The backbone of DNA consists of deoxyribose nucleotides linked by phosphodiester bridges.

The 3'-hydroxyl of the adjacent sugar of one deoxyribonucleotide is joined to the 5'-hydroxyl of the adjacent sugar by an internucleotide linkage called a phosphodiester bond.

Thus, phosphodiester bond is the answer

Answer 2

Answer:

Phosphodiester bond

Explanation:

Nucleotides are linked by phosphodiester bonds that are formed between the 5' phosphate group of one nucleotide and the 3' hydroxyl group of another nucleotide in the DNA.