Question

The enzyme reverse transcriptase is

• A. RNA dependent RNA polymerase
• B. RNA dependent DNA Polymerase
• C. DNA dependent DNA polymerase
• D. DNA dependent RNA polymerase

Answer 1

Answer: (B)

RNA dependent DNA Polymerase

• The enzyme reverse transcriptase is present in certain viruses which have genetic material as the RNA. The enzyme is required for reverse transcription of viral RNA to DNA which can be inserted into the host DNA.
• The enzyme is RNA-dependent DNA polymerase. The RNA segment is considered as the template and the cDNA is synthesized. The second strand of the cDNA is synthesized to make the double-stranded structure of viral DNA.

Thus, the correct answer is option B.