Chapter 13.3, Problem 30AQP

a.

Summary Introduction

To determine:

The reason for accepting or rejecting the statement “Transcription does not take place” when bacteria are raised at an elevated temperature if rho is not functional at a higher temperature and the strain of bacteria possesses a mutation in a gene that encodes the rho subunit.

Introduction:

Rho-factor is a type of prokaryotic protein which causes termination of the transcription process when the RNA forms a hairpin loop structure. Rho-factor displaces RNA polymerase and stops the transcription process.

b.

Summary Introduction

To determine:

The reason for accepting or rejecting the statement “All RNA molecules are shorter than normal” when bacteria are raised at an elevated temperature if rho is not functional at a higher temperature and the strain of bacteria possesses a mutation in a gene that encodes the rho subunit.

Introduction:

Rho-factor is a type of prokaryotic protein which causes termination of the transcription process when the RNA forms a hairpin loop structure. Rho-factor displaces RNA polymerase and stops the transcription process.

c.

Summary Introduction

Introduction:

Rho-factor is a type of prokaryotic protein which causes termination of the transcription process when the RNA forms a hairpin loop structure. Rho-factor displaces RNA polymerase and stops the transcription process.

To determine:

The reason for accepting or rejecting the statement “All RNA molecules are longer than normal” when bacteria are raised at an elevated temperature if rho is not functional at a higher temperature and the strain of bacteria possesses a mutation in a gene that encodes the rho subunit.

d.

Summary Introduction

To determine:

The reason for accepting or rejecting the statement “Some RNA molecules are longer than normal” when bacteria are raised at an elevated temperature if rho is not functional at a higher temperature and the strain of bacteria possesses a mutation in a gene that encodes the rho subunit.

Introduction:

Rho-factor is a type of prokaryotic protein which causes termination of the transcription process when the RNA forms a hairpin loop structure. Rho-factor displaces RNA polymerase and stops the transcription process.

e.

Summary Introduction

To determine:

The reason for accepting or rejecting the statement “RNA is copied from both DNA strands” when bacteria are raised at an elevated temperature if rho is not functional at a higher temperature and the strain of bacteria possesses a mutation in a gene that encodes the rho subunit.

Introduction:

Rho-factor is a type of prokaryotic protein which causes termination of the transcription process when the RNA forms a hairpin loop structure. Rho-factor displaces RNA polymerase and stops the transcription process.