Question

Enzyme needed for production of DNA from RNA template in certain viruses is

• A. RNA polymerase
• B. Reverse transcriptase
• C. DNA helicase
• D. DNA polymerase

Answer 1

The correct option is B Reverse transcriptase

Reverse transcriptase also called RNA-directed DNA polymerase, an enzyme encoded from the genetic material of retroviruses that catalyzes the transcription of retrovirus RNA (ribonucleic acid) into DNA (deoxyribonucleic acid). This catalyzed transcription is the reverse process of normal cellular transcription of DNA into RNA, hence the names reverse transcriptase and retrovirus.

So, the correct answer is 'Reverse transcriptase'