Which of the following statements does not hold true for restriction enzyme?

Options

A. It recognises a palindromic nucleotide sequence.
B. It is an endonuclease.
C. It is isolated from viruses.
D. It produces the same kind of sticky ends in different DNA Molecules.

Answer

C

Explanation

Restriction enzymes are a protein produced by bacteria that cleaves DNA at specific sites. These are not found in viruses. They are present in bacteria to provide a type of defence mechanism (called the restriction modification system) against bacterial viruses. They are of two types : endonuclease and exonuclease. They are indispensable tools in recombinant DNA technology and genetic engineering