Step-by-step explanation:
The Plasmid is known as a genetic structures present in a cell that can be replicated independently of the chromosomes. Bacteria can take up from the foreign DNA in a process is known as the transformation.
This experiment helps to give control demonstrating that the arc (antibiotic-resistance colonies) which occurs on the plate is known as a result of the Plasmid which is taken up by the cells. If there is no Plasmid, then there should be no growth present on the antibiotic plates.