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#Question id: 2636


Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site

#I Life Science/ Life Sciences Group – I-V
  1. I and II

  2. II and III

  3. I and III

  4. II and IV


Answer:- Option(s): 2


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