What type of bond is formed between a phosphate group and ribose sugar in RNA?

The correct answer is the phosphodiester bond, which is crucial in the formation of the backbone of RNA molecules. In RNA, each ribose sugar is connected to a phosphate group through this type of bond. The significance of the phosphodiester bond lies in its ability to create long chains of nucleotides, linking multiple ribose sugars and phosphate groups together. This process ultimately forms the structural framework that allows RNA to perform its various functions within the cell, such as serving as a template for protein synthesis.

The other types of bonds mentioned are not applicable in this context. Hydrogen bonds typically stabilize the secondary structure of RNA (like base pairing), glycosidic bonds are found between ribose sugar and nitrogenous bases in nucleotides, and peptide bonds link amino acids in proteins. Understanding these distinctions clarifies the unique roles various bonds play in molecular biology.