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

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Correct answer: A – 2; B – 1; C – 4; D – 3. A is matched with 2: ​Arber and Smith discovered endonucleases (restriction enzymes). They are enzymes that cut DNA at specific sequences, essential for genetic engineering and molecular biology. These restriction enzymes, such as EcoRI, allow precise DNA modifications, facilitating cloning, genome mapping, and recombinant DNA technology, forming the foundation of modern genetic research and biotechnology applications. B is matched with 1: Feldman developed transgenic plants using Agrobacterium T-DNA. It is a method for introducing foreign genes into plant genomes. This technique revolutionized agriculture by creating genetically modified crops like Bt cotton with enhanced traits like pest resistance and drought tolerance. C is matched with 4: Polymerase Chain Reaction (PCR) was discovered by Kary Mullis. It enables rapid DNA amplification, crucial in forensic science, disease diagnosis, and genetic research. Using DNA polymerase and temperature cycling, PCR exponentially multiplies DNA sequences, allowing precise genetic analysis. It plays

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