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#Question id: 5242


Auxotrohic bacteria plating on different medium, it is observed that colonies grow on minimal plus threonine only, no colony on minimal plus leucine and no colonies grow on minimal medium cystein only. What are the actual genotypes of auxotroph?

#XL - T Zoology
  1. Leu- Thr- Cys+           

  2. Leu+ Thr- Cys+           

  3. Leu+ Thr+ Cys-           

  4. Leu- Thr+ Cys+       


Answer:- Option(s): 2


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