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TLS Online TPP Program

#Question id: 3869

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

#Unit 3. Fundamental Processes

  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.

More Questions
TLS Online TPP Program

#Question id: 2923

#Unit 2. Cellular Organization

Injection of an immature Xenopus oocyte with MPF induces:
TLS Online TPP Program

#Question id: 2925

#Unit 2. Cellular Organization

Mitotic cyclin levels in early Xenopus embryos are regulated by:
TLS Online TPP Program

#Question id: 2926

#Unit 2. Cellular Organization

Given below are some of the Mechanisms, checkpoint proteins and their functions. 

Which of the following match is correct?
TLS Online TPP Program

#Question id: 2927

#Unit 2. Cellular Organization

Site-directed mutagenesis of Tyr-15 to Phe in cdc2:
TLS Online TPP Program

#Question id: 2928

#Unit 2. Cellular Organization

Which of the following S. pombe mutants is(are) larger than normal?
TLS Online TPP Program

#Question id: 2929

#Unit 2. Cellular Organization

Exit from mitosis depends upon the degradation of: