Question 1

Chromosome-level gene repression involves

Accepted Answer

A) supercoiling. 
B) physical blockage of gene regions. 
C) chromatin formation. 
D) nucleosomes. 
E) All of these 
A) supercoiling. 
B) physical blockage of gene regions. 
C) chromatin formation. 
D) nucleosomes. 
E) All of these

Question 2

Which of the following secondary structures may be a DNA-binding domain?

Accepted Answer

A) Zinc finger 
B) Leucine zipper 
C) Helix-turn-helix 
D) A and B only 
E) A,B,and C 
A) Zinc finger 
B) Leucine zipper 
C) Helix-turn-helix 
D) A and B only 
E) A,B,and C

Question 3

When a promoter element is bound by a positive regulatory protein,the result is

Accepted Answer

A) activation of replication. 
B) activation of transcription. 
C) activation of translation. 
D) repression of replication. 
E) repression of transcription. 
A) activation of replication. 
B) activation of transcription. 
C) activation of translation. 
D) repression of replication. 
E) repression of transcription.

Question 4

A similarity between regulation of the lac operon in bacteria and the regulation of galactose utilization in yeast is that both pathways

Accepted Answer

A) transcribe all the genes necessary as one polycistronic mRNA. 
B) use feedback inhibition to stop making their sugars. 
C) use a modified version of their sugars as inducers. 
D) are subject to catabolite repression. 
E) C and D only 
A) transcribe all the genes necessary as one polycistronic mRNA. 
B) use feedback inhibition to stop making their sugars. 
C) use a modified version of their sugars as inducers. 
D) are subject to catabolite repression. 
E) C and D only

Question 5

Removal of the 5' G-cap of mRNA transcripts

Accepted Answer

A) prevents transcript transport. 
B) leads to degradation by exonucleases. 
C) extends mRNA half-life. 
D) leads to polyadelylation. 
E) reduces mRNA half-life. 
A) prevents transcript transport. 
B) leads to degradation by exonucleases. 
C) extends mRNA half-life. 
D) leads to polyadelylation. 
E) reduces mRNA half-life.

Question 6

The half-life of a protein is directly related to

Accepted Answer

A) what kind of cell it is produced in. 
B) its tertiary structure. 
C) whether it is encoded by a constitutively expressed gene. 
D) its N-terminal amino acid residue. 
E) the number of stabilizing cross-linkages. 
A) what kind of cell it is produced in. 
B) its tertiary structure. 
C) whether it is encoded by a constitutively expressed gene. 
D) its N-terminal amino acid residue. 
E) the number of stabilizing cross-linkages.

Chromosome-level gene repression involves

Which of the following secondary structures may be a DNA-binding domain?

When a promoter element is bound by a positive regulatory protein,the result is

A similarity between regulation of the lac operon in bacteria and the regulation of galactose utilization in yeast is that both pathways

Removal of the 5' G-cap of mRNA transcripts

The half-life of a protein is directly related to

Genetics: An Introduction

DNA: The Genetic Material

DNA Replication

Gene Function

Gene Expression: Transcription

Gene Expression: Translation

Dna Mutation, DNA Repair, and Transposable Elements

Genomics: The Mapping and Sequencing of Genomes

Functional and Comparative Genomics

Recombinant DNA Technology

Mendelian Genetics

Chromosomal Basis of Inheritance

Extensions of and Deviations From Mendelian Genetic Principles

Genetic Mapping in Eukaryotes

Genetics of Bacteria and Bacteriophages

Variations in Chromosome Structure and Number

Regulation of Gene Expression in Bacteria and Bacteriophages

Genetic Analysis of Development

Genetics of Cancer

Population Genetics

Quantitative Genetics

Molecular Evolution

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Exam 18: Regulation of Gene Expression in Eukaryotes

Chromosome-level gene repression involves

Which of the following secondary structures may be a DNA-binding domain?

When a promoter element is bound by a positive regulatory protein,the result is

A similarity between regulation of the lac operon in bacteria and the regulation of galactose utilization in yeast is that both pathways

Removal of the 5' G-cap of mRNA transcripts

The half-life of a protein is directly related to

Genetics: An Introduction

DNA: The Genetic Material

DNA Replication

Gene Function

Gene Expression: Transcription

Gene Expression: Translation

Dna Mutation, DNA Repair, and Transposable Elements

Genomics: The Mapping and Sequencing of Genomes

Functional and Comparative Genomics

Recombinant DNA Technology

Mendelian Genetics

Chromosomal Basis of Inheritance

Extensions of and Deviations From Mendelian Genetic Principles

Genetic Mapping in Eukaryotes

Genetics of Bacteria and Bacteriophages

Variations in Chromosome Structure and Number

Regulation of Gene Expression in Bacteria and Bacteriophages

Genetic Analysis of Development

Genetics of Cancer

Population Genetics

Quantitative Genetics

Molecular Evolution

Filters