Question
Explain briefly:
Restriction enzymes and DNA
Restriction enzymes and DNA
✓
Answer
Restriction enzymes and DNA- Restriction enzymes is a group of enzymes used to cleave or cut DNA strands each having a characteristics base sequence at which it cleaves.
- lt restricts foreign DNA from entering normal cell by digesting it at various recognition site. Recognition site is palindromic.
- They are endonuclease and exonuclease both types.
- They produces sticky ends. Cleavage site and recognition site are different from each other. Restriction enzymes therefore are believed to be a mechanism evolved by bacteria to resist viral attack and to help in the removal of viral sequences.
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