<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Glycine is useful in all of the following except
Options:
A. Purine synthesis
B. Creatine synthesis
C. Spermine synthesis
D. Heme synthesis
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is C: Spermine synthesis. Explanation: Spermine is a type of polyamine.This is aliphatic amine and it is synthesized from ornithine. Key enzyme is ornithine decarboxylase. REFERENCE : DM.VASUDEVAN.TEXTBOOK; SEVENTH EDITION ; PAGE NO : 229<|im_end|>
