Restriction enzymes that are used in the construction of recombinant DNA are endonucleases which cut the DNA at specific recognition sequence? What would be the disadvantage if they do not cut the DNA at specific recogniion sequence?

Explanation

If the restriction enzymes would cut DNA at random sites instead of at specific sites, then the DNA f ragments obtained will not h ave sticky ends in the absence of sticky ends. Construction of recombinant DNA molecule would not be possible.