1 MCQs in Biochemistry for NEET PG
A 6-month-old male infant presents with developmental delay, hypotonia, and recurrent seizures. Metabolic workup reveals elevated plasma methionine (450 µmol/L, normal <30), elevated homocysteine (85 µmol/L, normal <15), and normal methylmalonic acid. Urine organic acid analysis shows elevated homocysteine metabolites. Vitamin B₁₂ levels are normal. The infant's parents are consanguineous. Which of the following enzyme defects is most likely responsible for this clinical presentation?
Ready to test yourself?
Test your Biochemistry knowledge with AI-powered MCQs and detailed explanations.
Sign up free and practice all 1 Homocysteine Metabolism and Cobalamin Defects MCQs with AI-powered explanations tailored to your performance.
Create Free Account