Suppose you have a bacterium, which is normally killed in an hour when growing in a medium containing penicillin.  This bacterium is an auxotroph and requires tryptophan for growth.  When placed in a medium lacking both tryptophan and penicillin, the bacterium neither grows nor dies for several hours.  Question: Is it killed in an hour in a medium lacking tryptophan but containing penicillin?  (Yes/No and explain briefly why).

Comprehensive Medical Assisting: Administrative and Clinical Competencies (MindTap Course List)
6th Edition
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Chapter42: Basic Microbiology
Section: Chapter Questions
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Suppose you have a bacterium, which is normally killed in an hour when growing in a medium containing penicillin.  This bacterium is an auxotroph and requires tryptophan for growth.  When placed in a medium lacking both tryptophan and penicillin, the bacterium neither grows nor dies for several hours. 

Question: Is it killed in an hour in a medium lacking tryptophan but containing penicillin?  (Yes/No and explain briefly why).

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