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Many plasmids have Ampr marker. This implies
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- The plasmids contain genes for ampicillin biosynthesis
- Ampicillin is required for bacterial growth after transformation
- The plasmid contains the gene encoding β-lactamase
- Ampicillin is essential for cell survival
Correct Option: C
An ampicillin resistance gene (abbreviated ampR) is commonly used as a selectable marker in routine biotechnology. bacterial AmpR gene when complete, encodes b-lactamase conferring resistance to ampicillin.
