This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Structure & Function of Proteins), Subject name: Biochemistry
[{'content': 'Amino acid required for formation of thyroxine- \nSelect and explain. \nA. Tryptophan, B. Tyrosine, C. Glutamine, D. Cysteine', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e.. Tyrosine o The term thyroid hormone denotes both thyroxine (T4) and triodothyronine (T3).o Both T4 and T are iodine derivatives of thyronine.o Thyronine is a condensation product of two molecules of amino acid tyrosine.o Thyroxine is 3, 5, 3', 5' - tetraiodothvronineandT, is 3,5,3'-triiodothyronine.o Thyroid hormones are synthesized and stored in the thyroid follicles as apart of thyroglobulin molecule.", 'role': 'assistant'}]