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TLS Online TPP Program

#Question id: 3868

The sigma factor of E. coli RNA polymerase: 

#SCPH06 I Botany

  1. associates with the promoter before binding core enzyme.

  2. combines with the core enzyme to confer specific binding to a promoter.

  3. is inseparable from the core enzyme.

  4. is required for termination of an RNA chain.

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TLS Online TPP Program

#Question id: 5245

#SCPH28 | Zoology

Which method of gene transfer involves direct contact between the bacteria?
TLS Online TPP Program

#Question id: 17817

#SCPH05 I Biotechnology

Power number is expressed as
TLS Online TPP Program

#Question id: 4128

#SCPH28 | Zoology

Which of the following statements about tRNA molecules is false?
TLS Online TPP Program

#Question id: 4152

#SCPH01 Biochemistry

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.
TLS Online TPP Program

#Question id: 3016

#SCPH05 I Biotechnology

Prokaryotic cells divide by a process known as