Question

Which one of these is not a tool of recombinant DNA technology?

• A. Restriction enzyme
• B. Vector
• C. Polymerase enzyme
• D. Introns

Answer 1

The correct option is D Introns

The restriction enzyme cuts DNA at a specific sequence. Vector is used as a vehicle to artificially carry foreign genetic material into another cell. The polymerase enzyme is used for synthesising segments of DNA. All of them help in recombinant DNA technology.

Introns are noncoding sequences of RNA that are removed by splicing during maturation of the final RNA product.

So, the correct option is 'Introns'.