Statement : When cut by the same restriction enzyme, the resultant DNA fragments have the same kind of sticky ends, and these can be joined together end-to-end using DNA ligases.

Statement : Disruption of the cell membranes can be achieved by treating the bacterial cells, plant, or animal tissue with enzymes such as lysozyme (bacteria), cellulase (plant cells), and chitinase (fungus).

Statement : If any protein-encoding gene is expressed in a heterologous host, it is called a recombinant protein.

Statement : In gel electrophoresis, the separated DNA fragments can be seen only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation.