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#Question id: 5757


A new E. coli mutant was tested for auxotrophy. The mutant grows on:

minimal medium (M) + arginine (A) + proline (P)

M + P + histidine (H)

M + A + H + P

but not on M or on M + A + H. The mutant requires

#SCPH28 | Zoology
  1. Arginine

  2. Histidine and proline

  3. Histidine

  4. Proline


Answer:- Option(s): 4


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