A scientist wants to produce human insulin using E. coli. She isolates the insulin gene, amplifies it using PCR, and inserts it into a plasmid vector carrying an ampicillin resistance gene. The plasmid is then introduced into E. coli, and the transformed cells are cultured in a medium containing ampicillin. Why will only the transformed E. coli survive in the medium?

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Biology · Biotechnology

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Only transformed cells carry the ampicillin resistance gene.

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Answer 1

Only transformed cells produce insulin.

Answer 2

Only transformed cells carry the ampicillin resistance gene.

Answer 3

Only transformed cells can replicate plasmids.

Answer 4

Only transformed cells can utilize glucose in the medium.

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