UPSC 2002: Match List I (Scientists) with List II (Achievement) and select the correct answer using the codes given below the lists: List I (Scientists) A. Arber and Smith B. Feldman C. Mullis D. Temin and Baltimore List II (Achievement) 1. Developed transgenic plants with Agrobacterium T-DNA 2. Discovered endonucleases 3. Discovered reverse transcriptase 4. Discovered polymerase chain reaction

Werner Arber and Hamilton Smith shared the 1978 Nobel Prize for discovering restriction endonucleases (A-2) ([nature.com](https://www.nature.com/articles/nsb0200_99?utm_source=openai)); Kenneth Feldmann’s team pioneered production of transgenic Arabidopsis using Agrobacterium T-DNA (B-1) ([experts.umn.edu](https://experts.umn.edu/en/publications/agrobacterium-mediated-transformation-of-germinating-seeds-of-ara?utm_source=openai)); Kary Mullis invented the polymerase-chain-reaction technique (C-4) ([britannica.com](https://www.britannica.com/biography/Kary-Mullis?utm_source=openai)); and Howard Temin with David Baltimore discovered reverse transcriptase (D-3) ([britannica.com](https://www.britannica.com/biography/Howard-Martin-Temin?utm_source=openai)). Hence the correct matching sequence is 2 1 4 3, i.e., option (a).