Question

B. What breakthrough made recombinant DNA technology possible and why?

Answer 1

Cutting DNA

The breakthrough that made recombinant DNA technology possible was the discovery and characterization of restriction enzymes. Restriction enzymes are produced by bacteria as a defense mechanism against phages. The enzymes act like scissors, cutting up the DNA of the phage and thereby inactivating it.

Answer 2

The breakthrough that made recombinant DNA technology possible was the discovery and characterization of restriction enzymes. Restriction enzymes are produced by bacteria as a defense mechanism against phages. The enzymes act like scissors, cutting up the DNA of the phage and thereby inactivating it.

Step-by-step explanation: