The sugar present in milk is

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(D) Lactose is a disaccharide sugar derived from galactose and glucose. The glycosidic linkage between galactose and glucose is $\beta-1 \rightarrow 4

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Lactose

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(D) Lactose is a disaccharide sugar derived from galactose and glucose. The glycosidic linkage between galactose and glucose is $\beta-1 \rightarrow 4$ linkage. Lactose makes up around $2-8 \%$ of milk by weight. The infants of mammals feed on milk rich in lactose,which is further digested by the enzyme lactase in the intestine. So,the correct answer is 'Lactose'.

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