Identifying Disaccharides by Glycosidic Bond Type

Carbohydrates are essential biomolecules that play a crucial role in energy storage and structural functions within biological systems. One of the most common types of carbohydrates is disaccharides, which are formed by the condensation of two monosaccharides. A classic example is sucrose, which is formed from glucose and fructose. Understanding the structure of carbohydrates and the types of glycosidic bonds that link monosaccharides is critical for biochemistry.

Which of the following disaccharides is formed by an α-1,2 glycosidic bond?