<prompt> Galactosemia commonly is due to deficiency ofGalactose-1 phosphate uridyl transferaseGalactose-1 phosphataseGlucose-1 phosphataseGlucose-6 phosphatase  <response>: Galactose-1 phosphate uridyl transferase Galactosemia is due to deficiency of :Galactose-1-phosphate uridyl transferase most common and best known,Galactokinase, andUDP-Galactose-4-epimerase. 