Question:medium

plasmid an alien piece of DNA is inserted at the EcoRI site

In the above represented plasmid an alien piece of DNA is inserted at the EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?

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In the blue/white screening method, the recombinant colonies are white because the insertion of foreign DNA disrupts the beta-galactosidase gene, preventing the conversion of X-gal to a blue color.
Updated On: Nov 26, 2025
  • Blue color colonies will be selected.
  • White color colonies will be selected.
  • Blue color colonies grown on ampicillin plates.
  • Using ampicillin \& tetracyclin containing medium plate.