Question

Restriction enzymes are used in genetic engineering and

• A. Cut DNA base pairs at specific sites
• B. Cut DNA base pairs at variable sites
• C. Join two DNA segments
• D. Cut RNA base pairs at specific sites

Answer 1

The correct option is A Cut DNA base pairs at specific sites

Restriction enzymes are used in genetic engineering for gene manipulation. It cuts DNA base pairs at specific sites. They cut the base pairs within the molecule so they are named as an endonuclease. 3000 restriction enzyme has been discovered till now. They are known as molecular scissors as they are used to cut a single gene from a larger piece of DNA.

So, the correct answer is option A.