This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': "Which one of the following is the complementary sequence of 5&;TTAAGCTAC3&;? \nSelect and explain. \nA. 5'GTACGCTTAA3', B. 5'AATTCGCATG3', C. 5'CATGCGAATT3', D. 5'TTAAGCGTAC3'", 'role': 'user'}, {'content': 'Answer: B \nExplanation: The sides of the DNA molecule are made up of sugar (deoxyribose) and phosphate molecules. The rungs that form the middle of the molecule are made up of pairs of nucleotides or nitrogen bases. Adenine (A) pairs with thymine (T), while guanine (G) always pairs with cytosine (C). The order of the bases determines the genetic code.', 'role': 'assistant'}]