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
Reverse transcription involves 
Select and explain. 
A. RNA dependent DNA synthesis, B. DNA dependent RNA synthesis, C. DNA dependent DNA synthesis, D. RNA dependent RNA synthesis
A: RNA dependent DNA synthesis
Answer: A: RNA dependent DNA synthesis 
Explanation: Generally, the genes are made up of DNA . Usually , DNA dependent RNA polymerase transfers the information of DNA to mRNA . But Retrovirus group , RNA acts as a template Based on this RNA , the enzyme , RNA dependent DNA polymerase or reverse transcriptase will make a new DNA strand. Reference : DM.VASUDEVAN.TEXTBOOK SEVENTH EDITION ; PAGE NO : 593.