Question

Two glucose molecules are joined together by

• A. Peptide bond
• B. Glycosidic bond
• C. Hydrogen bond
• D. 3', 5' - Phosphodiester bond

Answer 1

The correct option is B Glycosidic bond

A glycosidic bond or glycosidic linkage is a type of covalent bond that joins a carbohydrate molecule to another group, which may or may not be another carbohydrate. So two molecules are joined together by glycosidic bond.
A peptide bond is a covalent bond formed between two amino acids.
A hydrogen bond is the attractive force between the hydrogen attached to an electronegative atom of one molecule and an electronegative atom of a different molecule.
A phosphodiester bond is the bond between the phosphate group and the sugar in a polynucleotide molecule.