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Galactose metabolic pathway showing the enzyme block responsible for classic galactosemia and the buildup of precursors in the pathway

Diagram of the galactose metabolic pathway shows the enzyme block responsible for classic galactosemia (galactose 1-phosphate uridyltransferase [GALT]) and the buildup of precursors in the pathway. (Illustration prepared by Canada Hky on November 24, 2011. Public domain.)

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