TLS Online TPP Program

#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

#SCPH06 I Botany
  1. Arginine

  2. Histidine and proline

  3. Histidine

  4. Proline