(a) Restriction endonuclease : fragmentation of DNA
(b) DNA ligase : _____

The first restriction endonuclease

DNA finger printing is a technique in molecular biology. Arrange the following steps in sequence. Blotting of DNA fragment to nitro cellulose. Digestion of DNA by restriction endonuclease. Deletion of DNA by restriction endonuclease. Isolation of DNA, separation of DNA fragments by electrophoresis.

Molecular scissors which are commonly used as key tool in genetic engineering . Option one : DNA polymerase. Option two : Restriction endonuclease. Option three : DNA ligase. Option four : Lipase.

What is the function of Restriction Endonuclease in recombinant DNA technology?