TLS Online TPP Program

#Question id: 4121


The transition from the closed to the open complex involves structural changes in the enzyme and the opening of the DNA double helix to reveal the template and nontemplate strands. This “melting” involves

A. Isomerization reaction and it does not require energy derived from ATP hydrolysis

B. Isomerization is essentially irreversible and, once complete, typically guarantees that transcription will subsequently initiate

C. Positions –11 and -2, with respect to the transcription start site.

#Unit 3. Fundamental Processes
  1. B & C only 

  2. A & C only

  3. A only    

  4. A, B, & C only