Question 1

Which of the following statements regarding the ubiquitin-proteosome pathway is false?

Accepted Answer

A)  This pathway is used to regulate expression of a number of cell surface receptors.
B)  When proteins are destroyed by the proteosome,the ubiquitin moiety is not destroyed,but rather cleaved off and reused.
C)  Ubiquitin ligase adds ubiquitin residues to targeted proteins in a stepwise fashion.
D)  Ubiquitination of a targeted protein requires only one molecule of ATP.E) A) and B)
F) A) and C)

Question 2

The p300/CBP (CREB-binding protein) coactivator proteins are histone acetyltransferases that help regulate the transcription of many genes.Based on this information,these proteins are involved in

Accepted Answer

A)  DNA acetylation.
B)  chromatin remodeling.
C)  recruitment of RNA pol II.
D)  formation of the transcription initiation complex.E) A) and B)
F) All of the above

Question 3

You are working to identify enhancer regions of a particular gene.You should look

Accepted Answer

A)  immediately upstream of the promoter.
B)  immediately downstream of the promoter.
C)  primarily upstream of the promoter;distance from the promoter does not matter.
D)  primarily downstream of the promoter;distance from the promoter does not matter.E) None of the above
F) A) and B)

Question 4

The lactose analog isopropyl- β\betaβ -D-thio-galactoside (IPTG) is often used to regulate gene expression systems in bacteria.IPTG does not act as a substrate for  β\betaβ -galactosidase,but can bind to,and inactivate,repressor.In this case,IPTG serves as a(n)

Accepted Answer

A)  inducer.
B)  repressor.
C)  effector.
D)  operon. E) B) and D)
F) A) and D)

Question 5

Small RNAs can regulate gene expression.One type,called micro RNA (miRNA) ,acts by binding directly to

Accepted Answer

A)  mRNA to prevent translation.
B)  tRNA to prevent transcription.
C)  mRNA to prevent transcription.
D)  tRNA to prevent translation.E) A) and D)
F) B) and C)

Exam 16: Control of Gene Expression

The p300/CBP (CREB-binding protein) coactivator proteins are histone acetyltransferases that help regulate the transcription of many genes.Based on this information,these proteins are involved in

Correct Answer
verified

The lactose analog isopropyl- $\beta$ -D-thio-galactoside (IPTG) is often used to regulate gene expression systems in bacteria.IPTG does not act as a substrate for $\beta$ -galactosidase,but can bind to,and inactivate,repressor.In this case,IPTG serves as a(n)

Correct Answer
verified

Which of the following statements regarding the ubiquitin-proteosome pathway is false?

Correct Answer
verified

You are working to identify enhancer regions of a particular gene.You should look

Correct Answer
verified

Small RNAs can regulate gene expression.One type,called micro RNA (miRNA) ,acts by binding directly to

Correct Answer
verified

Exam 16: Control of Gene Expression

The p300/CBP (CREB-binding protein) coactivator proteins are histone acetyltransferases that help regulate the transcription of many genes.Based on this information,these proteins are involved in

Correct AnswerverifiedShow Answer

The lactose analog isopropyl- β\betaβ -D-thio-galactoside (IPTG) is often used to regulate gene expression systems in bacteria.IPTG does not act as a substrate for β\betaβ -galactosidase,but can bind to,and inactivate,repressor.In this case,IPTG serves as a(n)

Correct AnswerverifiedShow Answer

Which of the following statements regarding the ubiquitin-proteosome pathway is false?

Correct AnswerverifiedShow Answer

You are working to identify enhancer regions of a particular gene.You should look

Correct AnswerverifiedShow Answer

Small RNAs can regulate gene expression.One type,called micro RNA (miRNA) ,acts by binding directly to

Correct AnswerverifiedShow Answer

Correct Answer
verified

The lactose analog isopropyl- $\beta$ -D-thio-galactoside (IPTG) is often used to regulate gene expression systems in bacteria.IPTG does not act as a substrate for $\beta$ -galactosidase,but can bind to,and inactivate,repressor.In this case,IPTG serves as a(n)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified