This enzyme is used to synthesize cDNA from RNA:
Correct answer: B. Reverse Transcriptase
- A. Restriction Endonuclease
- B. Reverse Transcriptase
- C. Ligase
- D. Helicase
Explanation
Reverse transcriptase copies an RNA template into complementary DNA, which is how cDNA is made from mature mRNA in genetic engineering. Restriction endonucleases cut DNA at specific sequences, ligase joins DNA fragments and helicase unwinds the double helix, none of which can read RNA into DNA.
This question appeared on the UHS MDCAT 2026 paper, which you can sit online with every answer explained.
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