Biology · Carbohydrates

In a sucrose molecule, the 1 carbon of glucose is connected to the 2 carbon of fructose, so this bond is called a 1,2 glycosidic linkage.

Option A (1,4 Glycosidic Linkage) is incorrect because sucrose, the disaccharide formed from glucose and fructose, actually contains a 1,2 glycosidic linkage between glucose and fructose. 

In a sucrose molecule, the 1 carbon of glucose is connected to the 2 carbon of fructose, so this bond is called a 1,2 glycosidic linkage. 

Option C (1,6 Glycosidic Linkage) is incorrect because a 1,6 glycosidic linkage typically refers to the type of linkage found in branched polysaccharides like glycogen or amylopectin, not in sucrose. 

Option D (1,3 Glycosidic Linkage) is incorrect because sucrose is formed through a 1,2 glycosidic linkage between the glucose and fructose molecules, not a 1,3 linkage.