Question 1

Explain the sequence of events that would follow the transfer of an organism from a complex medium to a minimal medium.

Accepted Answer

Answers will vary but should include the...

Question 2

The actual residues in a DNA-binding protein that interacts with DNA usually correspond to each other according to the amino acids encoded by the DNA.For example,a DNA sequencing containing AGC-AGA-CAG which encodes for Ser-Arg-Gln would likely have a DNA-binding protein with Ser-Arg-Gln bind to it.

Accepted Answer

A) True 
 B)False

Question 3

Multiple sigma factors are essential to induce the biosynthesis of endospores,all of which are encoded by genes,so a complex regulatory mechanism such as this likely has a higher chance of mutations leading to incorrect functioning compared to a simple repression mechanism.

Accepted Answer

A) True 
 B)False

Question 4

Which organism would likely harbor the MOST two-component regulatory systems?

Accepted Answer

A)  an archaeon living in an extreme environment
B)  a bacterium occupying a heterogeneous niche will high nutrient mixing
C)  an organism capable of quorum sensing
D)  a parasitic bacterium living inside another organism

Question 5

Explain why cellular cannibalism is beneficial for sporulating Bacillus subtilis.

Accepted Answer

A cell that undergoes sporulation in res...

Question 6

Describe the function and the functional components of the maltose regulon system.

Accepted Answer

The textbook shows each component of the...

Question 7

A regulon always includes at least two operons.

Accepted Answer

A) True 
 B)False

Question 8

Explain the translational attenuation mechanism.

Accepted Answer

Attenuation is a mechanism that controls...

Question 9

Explain why one cell of a pathogenic bacterium by itself typically does not secrete a toxin,despite the species as a whole being characterized as toxin producing.To help in your explanation,predict what would happen to an individual pathogen that secreted a toxin inside a human.

Accepted Answer

One pathogenic bacterium is unlikely to ...

Question 10

Considering the catabolite repression mechanism,which observation would make you suspect it is NOT occurring?

Accepted Answer

A)  CRP bound to promoter sites
B)  elevated levels of transcripts for maltose and sucrose catabolism
C)  relatively low intracellular cyclic AMP levels
D)  RNA polymerase bound to biosynthetic promoter sequences

Question 11

Studying the transcriptional activity of flagellar genes would not likely reveal differential changes when the cells are actively motile compared to nonmotile activity,because a two-component regulatory system is sufficient to control flagellar activity.

Accepted Answer

A) True 
 B)False

Exam 7: Metabolic Regulation

Which organism would likely harbor the MOST two-component regulatory systems?

Correct Answer
verified

Explain why one cell of a pathogenic bacterium by itself typically does not secrete a toxin,despite the species as a whole being characterized as toxin producing.To help in your explanation,predict what would happen to an individual pathogen that secreted a toxin inside a human.

Correct Answer
verified
One pathogenic bacterium is unlikely to ...
View Answer

The actual residues in a DNA-binding protein that interacts with DNA usually correspond to each other according to the amino acids encoded by the DNA.For example,a DNA sequencing containing AGC-AGA-CAG which encodes for Ser-Arg-Gln would likely have a DNA-binding protein with Ser-Arg-Gln bind to it.

Correct Answer
verified

Explain the translational attenuation mechanism.

Correct Answer
verified
Attenuation is a mechanism that controls...
View Answer

Explain why cellular cannibalism is beneficial for sporulating Bacillus subtilis.

Correct Answer
verified
A cell that undergoes sporulation in res...
View Answer

Describe the function and the functional components of the maltose regulon system.

Correct Answer
verified
The textbook shows each component of the...
View Answer

Explain the sequence of events that would follow the transfer of an organism from a complex medium to a minimal medium.

Correct Answer
verified
Answers will vary but should include the...
View Answer

A regulon always includes at least two operons.

Correct Answer
verified

Studying the transcriptional activity of flagellar genes would not likely reveal differential changes when the cells are actively motile compared to nonmotile activity,because a two-component regulatory system is sufficient to control flagellar activity.

Correct Answer
verified

Multiple sigma factors are essential to induce the biosynthesis of endospores,all of which are encoded by genes,so a complex regulatory mechanism such as this likely has a higher chance of mutations leading to incorrect functioning compared to a simple repression mechanism.

Correct Answer
verified

Considering the catabolite repression mechanism,which observation would make you suspect it is NOT occurring?

Correct Answer
verified

Exam 7: Metabolic Regulation

Which organism would likely harbor the MOST two-component regulatory systems?

Correct AnswerverifiedShow Answer

Explain why one cell of a pathogenic bacterium by itself typically does not secrete a toxin,despite the species as a whole being characterized as toxin producing.To help in your explanation,predict what would happen to an individual pathogen that secreted a toxin inside a human.

Correct AnswerverifiedOne pathogenic bacterium is unlikely to ...View AnswerShow Answer

Correct AnswerverifiedShow Answer

Explain the translational attenuation mechanism.

Correct AnswerverifiedAttenuation is a mechanism that controls...View AnswerShow Answer

Explain why cellular cannibalism is beneficial for sporulating Bacillus subtilis.

Correct AnswerverifiedA cell that undergoes sporulation in res...View AnswerShow Answer

Describe the function and the functional components of the maltose regulon system.

Correct AnswerverifiedThe textbook shows each component of the...View AnswerShow Answer

Explain the sequence of events that would follow the transfer of an organism from a complex medium to a minimal medium.

Correct AnswerverifiedAnswers will vary but should include the...View AnswerShow Answer

A regulon always includes at least two operons.

Correct AnswerverifiedShow Answer

Studying the transcriptional activity of flagellar genes would not likely reveal differential changes when the cells are actively motile compared to nonmotile activity,because a two-component regulatory system is sufficient to control flagellar activity.

Correct AnswerverifiedShow Answer

Multiple sigma factors are essential to induce the biosynthesis of endospores,all of which are encoded by genes,so a complex regulatory mechanism such as this likely has a higher chance of mutations leading to incorrect functioning compared to a simple repression mechanism.

Correct AnswerverifiedShow Answer

Considering the catabolite repression mechanism,which observation would make you suspect it is NOT occurring?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
One pathogenic bacterium is unlikely to ...
View Answer

Correct Answer
verified

Correct Answer
verified
Attenuation is a mechanism that controls...
View Answer

Correct Answer
verified
A cell that undergoes sporulation in res...
View Answer

Correct Answer
verified
The textbook shows each component of the...
View Answer

Correct Answer
verified
Answers will vary but should include the...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified