Question

The enzyme capable of cutting DNA molecule at specific sites is

• A. Nuclease
• B. Restriction endonuclease
• C. Lipase
• D. Ligase

Answer 1

The correct option is B Restriction endonuclease

A restriction enzyme, restriction endonuclease is an enzyme that cleaves DNA into fragments at or near specific recognition sites within molecules known as restriction sites. In the bacterial cell, restriction enzymes cleave foreign DNA, thus eliminating infecting organisms. Restriction endonuclease is also known as molecular scissors as it cuts the DNA at the restriction sites.

So, option B is he correct option.