NEET Biology question
If a recombinant DNA bearing a gene for resistance to the antibiotic ampicillin is transferred into E. coli cells, the host cells become transformed into ampicillin-resistant cells. If such bacteria are transferred onto agar plates containing ampicillin, only transformants will grow and the untransformed recipient cells will die. The ampicillin resistance gene in this case is called a:
Answer: (A)
Solution
A recombinant protein, a cloning site and a chemical scalpel (a nickname for a restriction enzyme) do not describe this selective function, whereas a gene
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