53.The word 'restriction‘ in restriction enzyme refers to A. Cutting of DNA at specific position only B. Cleaving of phosphodiester linkage C. Prevention of the multiplication of bacteriophage in bacteria D. All of the above
Option C Restriction enzymes prevent the multiplication of bacteriophage in bacteria. They are used for cutting of DNA at specific position which becomes possible by cleaving of phosphodiester bond in DNA by the enzyme. So, the correct answer is 'Prevention of the multiplication of bacteriophage in bacteria'
