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140920 Biochemistry

Urine screening of an apparently healthy pregnant woman demonstrates a positive Clinitest reaction. However, blood glucose levels were within normal limits, and more specific testing for urine glucose is negative. The woman has been unaware of any metabolic problems and has been living a normal life. Deficiency of which of the following enzymes would most likely produce this presentation?

AFructokinase
BFructose 1-phosphate aldolase
CGalactose 1-P-uridyl transferase
DLactase
Biochemistry
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