This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Where is the gene for folate carrier protein located on? \nSelect and explain. \nA. Chromosome 10, B. Chromosome 5, C. Chromosome 21, D. Chromosome 9', 'role': 'user'}, {'content': 'Answer: C \nExplanation: . Chromosome 21', 'role': 'assistant'}]