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: Biochemistry
[{'content': "Which of the following is the complimentary sequence of 5' TTAAGCTAC 3'? \nSelect and explain. \nA. 5' GTACGCTTAA 3', B. 5' AATTCGCATG 3', C. 5' CATGCGAATT 3', D. 5' TTAAGCGTAC 3'", 'role': 'user'}, {'content': "Answer: A \nExplanation: The complementary sequence of 5' TTAAGCTAC 3' is 3'AATTCGCATG 5'or 5' GTACGCTTAA 3'. Complementary sequence of 5'-3' end always proceeds from 3'- 5. In the double stranded DNA, the bases of one strand of DNA pairs with the bases of the second strand in such a way that Adenine (A) always pairs with Thiamine (T) and Cytosine (C) always pairs with Guanine (G). Ref: Harper Illustrated Biochemistry, 26th Edition, Chapter 35, Page 303 ; Lippincott's Illustrated Reviews: Biochemistry, 3rd Edition, Chapter 29, Page 395", 'role': 'assistant'}]