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: Physiology
[{'content': 'C terminal end of androgen receptor is concerned with: \nSelect and explain. \nA. Ligand binding, B. Increasing biological half life, C. Increasing the affinity of receptor to DNA, D. Increasing the level of transcription', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Ligand bindingAndrogen receptor belongs to nuclear receptor super family. At carboxy (C) terminal of nuclear receptor, a multifunctional ligand binding domain (LBD=E domain) is locatedQ.', 'role': 'assistant'}]