Question

Which enzyme cleaves DNA into fragments?

Answer 1

Restriction enzyme:

1. The restriction enzyme or the restriction endonuclease cleaves DNA into fragments near or at the specific recognition sites in the molecules referred to as the restriction sites.
2. Restriction enzymes are called molecular scissors because these enzymes cut DNA at specific sites.
3. The first restriction endonuclease is Hind II.
4. The restriction enzymes cut DNA at a specific base sequence, and this specific base sequence is known as the recognition sequence.
5. Exonuclease serves to cleave the bonds located near the ends of the nucleic acid strands.
6. While endonucleases cleave bonds located within the strand.