NEET Zoology Recombinant DNA MCQ Question
Which combination of statements accurately describes the process of creating recombinant DNA?
- Plasmids can be used as vectors to deliver DNA. 2. DNA ligase is responsible for cutting DNA fragments. 3. Restriction enzymes can create specific DNA cuts.
- PCR uses DNA ligase to amplify DNA. 2. Plasmids are naturally occurring vectors. 3. Restriction enzymes are used to join DNA fragments.
- Plasmids act as vectors for DNA transfer. 2. DNA ligase joins DNA fragments. 3. Restriction enzymes create specific cuts in DNA.
- PCR amplifies DNA using plasmids directly. 2. DNA ligase cuts DNA fragments. 3. Plasmids cannot be used in molecular cloning.
Correct Answer
Detailed Explanation
Statement 1 is correct as plasmids serve as vectors for DNA transfer. Statement 2 is accurate because DNA ligase is responsible for joining DNA fragments. Statement 3 is also correct as restriction enzymes create specific cuts in DNA, facilitating the joining process.
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