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
In DNA, Cytosine is passed with 
Select and explain. 
A. Thymine, B. Guanine, C. Ademine, D. Uracil
B: Guanine
Answer: B: Guanine 
Explanation: In DNA , Cytosine pairs with Guanine and Thymine pairs with Adenine. Ref : DM.VASUDEVAN.TEXTBOOK ; SEVENTH EDITION ; PAGE NO : 560