Question

Why does the restriction phenomenon in bacteria naturally occur?

• A. For efficient cloning
• B. Bacteria produce an enzyme
• C. Destruction of bacterium’s own DNA
• D. For survival

Answer 1

Answer:

D. For survival

The restriction phenomenon in bacteria involves the production of restriction enzymes, which identify and cut specific sequences of foreign DNA. This defense mechanism safeguards the bacterium by preventing the replication and potential harm caused by invading DNA, aiding in its survival against threats like viruses or foreign genetic material.