Chapter 14 Regulation of Bacterial Cellular Processes

Chapter 14 Regulation of Bacterial Cellular Processes

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

True / False Questions

1. Small RNAs that regulate translation by binding to the leader region of mRNAs are called antisense RNAs.
   TRUE

ASM Objective: 04.03 The regulation of gene expression is influenced by external and internal molecular cues and/or signals.
ASM Topic: Module 04 Information Flow and Genetics
Blooms Level: 1. Remember
Learning Outcome: 14.04.02 Discuss regulation of translation by small RNAs
Section: 14.04
Topic: Gene Regulation

Multiple Choice Questions

2. How do translational riboswitches and transcriptional riboswitches differ?
   A. Translational riboswitches are mainly observed in Gram-negative bacteria while transcriptional riboswitches are associated with Gram-positive bacteria.
   B.  Translational riboswitches are located in the mRNA trailer while transcriptional riboswitches are in mRNA leader sequence.
   C.  Translational riboswitch effectors bind to ribosomes while transcriptional riboswitch effectors bind to mRNA.
   D.  All of these are differences between translational and transcriptional riboswitches.

ASM Objective: 04.03 The regulation of gene expression is influenced by external and internal molecular cues and/or signals.
ASM Topic: Module 04 Information Flow and Genetics
Blooms Level: 4. Analyze
Learning Outcome: 14.04.01 Distinguish translational riboswitches from transcriptional riboswitches
Section: 14.04
Topic: Gene Regulation

True / False Questions
 

3. The THI-element is part of the operon that controls synthesis of thymine in mRNA.
   FALSE

ASM Objective: 04.03 The regulation of gene expression is influenced by external and internal molecular cues and/or signals.
ASM Topic: Module 04 Information Flow and Genetics
Blooms Level: 2. Understand
Learning Outcome: 14.04.01 Distinguish translational riboswitches from transcriptional riboswitches
Section: 14.04
Topic: Gene Regulation

Multiple Choice Questions

4. Most E. coli antisense RNAs work with a protein called ______ to regulate their target mRNAs.
   A. CAP
   B.  MicF
   C.  Hfq
   D.  None of the choices are correct.

ASM Objective: 04.03 The regulation of gene expression is influenced by external and internal molecular cues and/or signals.
ASM Topic: Module 04 Information Flow and Genetics
Blooms Level: 2. Understand
Learning Outcome: 14.04.02 Discuss regulation of translation by small RNAs
Section: 14.04
Topic: Gene Regulation

5. An sRNA is isolated from a bacterial cell. What would you do to determine whether it is a cis-encoded or a trans-encoded sequence?
   A. Identify whether or not the sRNA sequence is complementary to the coding strand of mRNA gene target.
   B.  Analyze the molecular position of hydrogen atoms in the sRNA nucleotides.
   C.  Determine whether the sRNA binds to mRNA or to tRNA.
   D.  Find out if the sRNA acts as a transcriptional or as a translational inhibitor.

ASM Objective: 04.03 The regulation of gene expression is influenced by external and internal molecular cues and/or signals.
ASM Topic: Module 04 Information Flow and Genetics
ASM Topic: Module 07 Scientific Thinking
Blooms Level: 6. Create
Learning Outcome: 14.04.02 Discuss regulation of translation by small RNAs
Section: 14.04
Topic: Gene Regulation