<prompt> In hereditary fructose intolerance there is defect in:PhosphofructokinaseFructose 2, 6-biphosphataseFructokinaseAldolase B  <response>: Ans. D. Aldolase BDefect in hepatic fructokinase causes essential fructosuria.Defect in hepatic aldolase B causes hereditary fructose intolerance. 