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प्र: What is the principle carbohydrate of milk?

  • 1
    Fructose
  • 2
    Sucrose
  • 3
    Lactose
  • 4
    Galactose
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उत्तर : 3. "Lactose"
व्याख्या :

Answer: C) Lactose Explanation: Lactose is the major carbohydrate in the milk of most species.   Lactose is a disaccharide composed of the monosaccharides D-glucose and D-galactose, joined in a ß-1,4-glycosidic linkage. The chemical name for lactose is 4-0-ß-D-galactopyranosyl-D-glucopyranose.

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