Zoology - Biotechnology - Principles and Processes Question with Solution | TestHub

The enzyme responsible for inhibiting the activity of virus by cleaving its DNA and restricting its growth are called restriction enzymes. Restriction enzymes are also called 'molecular scissors' as they cleave DNA at or near specific recognition sequences known as restriction sites. Endonucleases are enzymes that cleave the phosphodiester bond within a DNA, whereas exonuclease start cleaving from the end of the polynucleotide chain. EcoRI is a restriction endonuclease isolated from E. coli which produces sticky ends.