Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 47485
TLS Online TPP Program

#Question id: 3869

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

#SCPH28 | Zoology

  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: 4198

#SCPH28 | Zoology

An elongation factor EF-Ts serves mainly to
TLS Online TPP Program

#Question id: 1629

#I Life Science/ Life Sciences Group – I-V

Clonal selection occurs when antigen is encountered by:
TLS Online TPP Program

#Question id: 766

#SCPH01 Biochemistry

With respect to microRNAs, which, if any, of the following statements, is true?
TLS Online TPP Program

#Question id: 271

#SCPH12 I Genetics

Which type of RNA carries activated amino acids to the ribosome for assembly into proteins?
TLS Online TPP Program

#Question id: 5563

#SCPH06 I Botany

In mammalian eggs, the receptors for sperm are found in the ________.