<prompt> Von Gierke;s disease is due to the deficiency ofGluc-6 phosphataseGlue-1 phosphataseBranching enzymeMycophosphorylase  <response>: Glycogen storage disease type I GSD I or von Gierke;s disease, is the most common of the glycogen storage diseases. This genetic disease results from deficiency of the enzyme glucose-6-phosphatase and has an incidence in the American population of approximately 1 in 100,000 bihs.Ref: DM Vasudevan, 7th edition, page no: 128 