Biomolecules

Statement-I:Cane sugar is a disaccharide of α-D-glucose and β-D-fructose.Cane sugar is sucrose.The structure of sucrose consists of $α$-D-glucose and $β$-D-fructose units joined by an $α , β$-1 → $2$ glycosidic linkage.Statement-I is correct.Statement-II:Milk sugar is a disaccharide of α-D-glucose and β-D-galactose.Milk sugar is lactose.Lactose is composed of $β$-D-galactose and $β$-D-glucose, linked by a $β$ - $1 \longrightarrow 4$ glycosidic bond.The glucose part in lactose is $β$-D-glucose, not α-D-glucose.Statement-II is not correct.