Question 1

Draw a transcription bubble,clearly labeling the proteins and nucleic acids involved in the process.

Accepted Answer

The answer of Draw a transcription bubble,clearly labeling the proteins...

Question 2

Rifampicin is known to inhibit RNA synthesis in E.coli.Once the first ten nucleotides have been incorporated,rifampicin does not inhibit RNA synthesis.Which of the following best explains how rifampicin functions?

Accepted Answer

A) rifampicin binds only to the core enzyme when bound to DNA but can bind to the holoenzyme when not bound to DNA 
B) rifampicin can bind to RNA polymerase when the polymerase is not bound to DNA but cannot bind when the polymerase is bound to DNA 
C) rifampicin only inhibits when the $\alpha$ subunit is bound to the core enzyme 
D) rifampicin is able to bind to the nucleotide binding site at any time 
E) none of the above 
A) rifampicin binds only to the core enzyme when bound to DNA but can bind to the holoenzyme when not bound to DNA 
B) rifampicin can bind to RNA polymerase when the polymerase is not bound to DNA but cannot bind when the polymerase is bound to DNA 
C) rifampicin only inhibits when the $\alpha$ subunit is bound to the core enzyme 
D) rifampicin is able to bind to the nucleotide binding site at any time 
E) none of the above

Question 3

Which of the following is the most common promoter element for pol II?

Accepted Answer

A) CAAT box (GGCCAATCT) 
B) GC box (GGGCGG) 
C) TRE (GAGGGACGTACCGC
A)  
D) TATA box (TATAAA
A)  
E) Octamer (ATTTGCAT) 
A) CAAT box (GGCCAATCT) 
B) GC box (GGGCGG) 
C) TRE (GAGGGACGTACCGC
A)  
D) TATA box (TATAAA
A)  
E) Octamer (ATTTGCAT)

Question 4

What is the mechanism by which enhancers,despite the fact that they are often several kilobase pairs away from the promoter,activate transcription?

Accepted Answer

A) DNA unwinding 
B) DNA looping 
C) chromatin remodeling 
D) DNA hairpin formation 
E) none of the above 
A) DNA unwinding 
B) DNA looping 
C) chromatin remodeling 
D) DNA hairpin formation 
E) none of the above

Draw a transcription bubble,clearly labeling the proteins and nucleic acids involved in the process.

Rifampicin is known to inhibit RNA synthesis in E.coli.Once the first ten nucleotides have been incorporated,rifampicin does not inhibit RNA synthesis.Which of the following best explains how rifampicin functions?

Which of the following is the most common promoter element for pol II?

What is the mechanism by which enhancers,despite the fact that they are often several kilobase pairs away from the promoter,activate transcription?

The Scope of Biochemistry

The Matrix of Life: Weak Interactions in an Aqueous Environment

The Energetics of Life

Nucleic Acids

Introduction to Proteins: the Primary Level of Protein Structure

The Three-Dimensional Structure of Proteins

Protein Function and Evolution

Contractile Proteins and Molecular Motors

Carbohydrates: Sugars,saccharides,glycans

Lipids,membranes and Cellular Transport

Enzymes: Biological Catalysts

Chemical Logic of Metabolism

Carbohydrate Metabolism: Glycolysis, gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Citric Acid Cycle and Glyoxylate Cycle

Electron Transport, oxidative Phosphorylation, and Oxygen Metabolism

Photosynthesis

Lipid Metabolism I: Fatty Acids,triacylglycerols,and Lipoproteins

Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Lipid Metabolism Ii: Membrane Lipids, steroids, isoprenoids, and Eicosanoids

Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, utilization, and Turnover

Metabolism of Nitogenous Compounds Ii: Amino Acids, porphyrins, and Neurotransmitters

Nucleotide Metabolism

Mechanisms of Signal Transduction

Genes,genomes and Chromosomes

Dna Replication

Dna Restructuring: Repair,recombination,rearrangement,amplification

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

Filters

Exam 27: Information Readout: Transcription and Post-Transcriptional Processing

Draw a transcription bubble,clearly labeling the proteins and nucleic acids involved in the process.

Rifampicin is known to inhibit RNA synthesis in E.coli.Once the first ten nucleotides have been incorporated,rifampicin does not inhibit RNA synthesis.Which of the following best explains how rifampicin functions?

Which of the following is the most common promoter element for pol II?

What is the mechanism by which enhancers,despite the fact that they are often several kilobase pairs away from the promoter,activate transcription?

The Scope of Biochemistry

The Matrix of Life: Weak Interactions in an Aqueous Environment

The Energetics of Life

Nucleic Acids

Introduction to Proteins: the Primary Level of Protein Structure

The Three-Dimensional Structure of Proteins

Protein Function and Evolution

Contractile Proteins and Molecular Motors

Carbohydrates: Sugars,saccharides,glycans

Lipids,membranes and Cellular Transport

Enzymes: Biological Catalysts

Chemical Logic of Metabolism

Carbohydrate Metabolism: Glycolysis, gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Citric Acid Cycle and Glyoxylate Cycle

Electron Transport, oxidative Phosphorylation, and Oxygen Metabolism

Photosynthesis

Lipid Metabolism I: Fatty Acids,triacylglycerols,and Lipoproteins

Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Lipid Metabolism Ii: Membrane Lipids, steroids, isoprenoids, and Eicosanoids

Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, utilization, and Turnover

Metabolism of Nitogenous Compounds Ii: Amino Acids, porphyrins, and Neurotransmitters

Nucleotide Metabolism

Mechanisms of Signal Transduction

Genes,genomes and Chromosomes

Dna Replication

Dna Restructuring: Repair,recombination,rearrangement,amplification

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

Filters