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
In Hybrid RNA-DNA, DNA is 5CTTAAG3. The sequence of RNA will be 
Select and explain. 
A. 5CTTAAG3, B. 5CUUAAG3, C. 5GAATTC3, D. 5GAAUUC3
B: 5CUUAAG3
Answer: B: 5CUUAAG3 
Explanation: The RNA transcript with a 5' to 3' polarity is complementary to the template strand with its 3' to 5' polarity.
So, the complementary RNA of template DNA (5'CTTAAG3') will be 3'GAAUUC5' (i.e. 5'CUUAAG3').