Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 60339
TLS Online TPP Program

#Question id: 3869

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

#Molecular Biology

  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: 16090

#Human Biology

Which of the following is heat-dissipating mechanism?
TLS Online TPP Program

#Question id: 16092

#Human Biology

A major means for conserving heat is:
TLS Online TPP Program

#Question id: 16094

#Human Biology

When measured orally the average normal temperature is considered to be:
TLS Online TPP Program

#Question id: 1574

#Human Biology

A bacterium entering the body through a small cut in the skin will do which of the following?
TLS Online TPP Program

#Question id: 1575

#Human Biology

CpG unmethylated dinucleotides recognize by
TLS Online TPP Program

#Question id: 16095

#Human Biology

At which temperature does the excitation of the thermoreceptors begin to cause pain?