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Biochemistry
A 6-month-old boy was admitted with failure to thrive. Laboratory tests showed hypoglycemia and high glutamine and uracil levels in urine. Gastric tube feeding was not tolerated. The child became comatose and then parenteral dextrose was given. The child recovered from coma within 24 hrs. Which of the following enzyme is defective?
Argininosuccinate synthase
Carbamoyl phosphate synthase I
Argininosuccinate lyase
Ornithine transcarbamoylase
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