Plasmid pBR322 has PstI restriction enzyme site within gene amp R that confers ampicillin resistance. If this enzyme is used for inserting a gene for β-galactoside production and the recombinant plasmid is inserted in an E.coli strain

1. A. The transformed cells will have the ability to resist ampicillin as well as produce β-galactoside
2. B. It will lead to lysis of host cell
3. C. It will be able to produce a novel protein with dual ability
4. D. It will not be able to confer ampicillin resistance to the host cell

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