How is gene Z used as a marker?
The Lac Z Gene Is responsible for the coding of Β-galactosidase enzyme this results in the inactivation of the enzyme due to the insertion of recombinant DNA in the coding sequence of an enzyme Β-galactosidase. The bacterial colony normally produces blue-colored colonies by they get the insert into their plasmid then it will result in the production of colonies that are colorless.