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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Agent which on addition to a colony inhibits its growth and on removal the colony regrows is -
assistant
The correct answer is  They prevent the multiplication of bacteria but however they remain alive. Few antibiotics such as tetracycline,sulphomethoxazole REF:Textbook of microbiology, Ananthanarayan and Paniker. Page no.: 28 Tara textbook of pharmacology