Why is ampicillin added to agar plates?

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Tags

1. #expression
2. #degradation
3. #selection
4. #marker
5. #plasmids
6. #formation
7. #colonies
8. #cloning
9. #plates
10. #ampicillin
11. #transformation
12. #satellite
13. #bacteria
14. #other
15. #commonly
16. #protein