Answer the following Q with stream of consciousness. Passage: In genetics, complementary DNA (cDNA) is DNA synthesized from a single stranded RNA (e.g., messenger RNA ( mRNA) or microRNA ) template in a reaction catalyzed by the enzyme reverse transcriptase. cDNA is often used to clone eukaryotic genes in prokaryotes. When scientists want to express a specific protein in a cell that does not normally express that protein (i.e., heterologous expression), they will transfer the cDNA that codes for the protein to the recipient cell. cDNA is also produced naturally by retroviruses (such as HIV-1, HIV-2, simian immunodeficiency virus, etc.) and then integrated into the host's genome, where it creates a provirus.

Question: Based on this passage, name the type of enzyme used to produce the cdna?
The important part for answering this question is: In genetics, complementary DNA (cDNA) is DNA synthesized from a single stranded RNA (e.g., messenger RNA ( mRNA) or microRNA ) template in a reaction catalyzed by the enzyme reverse transcriptase. Therefore, the final answer is the enzyme reverse transcriptase.