If a recombinant DNA bearing a gene for resis | vedclass

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(B) The correct answer is $B$. When $E. coli$ cells are transformed with a recombinant $DNA$ molecule containing an Ampicillin-resistance gene,they ac

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Non-transformants will die and transformants will grow

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(B) The correct answer is $B$. When $E. coli$ cells are transformed with a recombinant $DNA$ molecule containing an Ampicillin-resistance gene,they acquire the ability to survive in the presence of the antibiotic Ampicillin. Non-transformants are cells that have not taken up the recombinant $DNA$ and therefore lack the resistance gene. When these cells are cultured on a medium containing Ampicillin,the non-transformants will die due to the antibiotic's effect,while the transformants will survive and grow to form colonies.

If a recombinant $DNA$ bearing a gene for resistance to Ampicillin is transferred into $E. coli$ cells,the host cells become transformed into Ampicillin-resistant cells. What happens when these $E. coli$ are grown on a medium containing Ampicillin?

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