Read the following statements and answer the questions that follow :- Alternative selectable markers have been developed which differentiate the components from non recombinants on the basis of their ability to produce colour in the presence of a chromogenic substrate. In this a component DNA is inserted within the coding sequence of an enzyme beta galactosidase. This results into inactivation of the gene for synthesis of this enzyme.

What is the process mentioned above called?

Downstream processing Insertional inactivation Insertional activation Selection

Insertional inactivation

In the process of insertional inactivation a recombinant DNA is inserted within the coding sequence of enzyme -galactosidase, resulting in inactivation of the enzyme.