Question

What is true about recombinant DNA technology?

• A. Antibiotic-resistant genes can be inserted into a bacteria using r-DNA technology.
• B. Foreign gene will always multiply when inserted in host DNA
  
• C. There is no use of DNA ligase
• D. All of the above

Answer 1

The correct option is A

Antibiotic-resistant genes can be inserted into a bacteria using r-DNA technology.

The first recombinant DNA was formed when Cohen and Boyer (1972), inserted an antibiotic-resistant gene into the plasmid of Salmonella typhi.