Question

What are restriction endonucleases?

Answer 1

1. Restriction endonucleases are enzymes that cut DNA molecules at specific recognition sites.
2. They act as molecular scissors in recombinant DNA technology by cleaving DNA at particular nucleotide sequences.
3. These enzymes protect bacteria by cutting foreign DNA invading the cell.
4. They produce either blunt ends or sticky ends, which help in the insertion of foreign DNA during gene cloning.