TLS Online TPP Program

#Question id: 3869


Which one of the following statements about E. coli RNA polymerase (core enzyme) is false?

#SCPH05 I Biotechnology
  1. It can start new chains de novo or elongate old ones.

  2. It has no catalytic activity unless the sigma factor is bound.

  3. It uses nucleoside 5'-triphosphates as substrates.

  4. Its activity is blocked by rifampicin.