Question 1

How does RecA bring about strand exchange?

Accepted Answer

A) RecA acts as a helicase, unwinding DNA in localized regions 
B) RecA monomers bind to ssDNA to form a nucleoprotein filament 
C) RecA monomers interact only with ssDNA and immediately dissociate when binding to dsDNA 
D) RecA forms a tetramer that wraps around DNA at specific sites that must be cleaved by a nuclease 
E) none of the above 
A) RecA acts as a helicase, unwinding DNA in localized regions 
B) RecA monomers bind to ssDNA to form a nucleoprotein filament 
C) RecA monomers interact only with ssDNA and immediately dissociate when binding to dsDNA 
D) RecA forms a tetramer that wraps around DNA at specific sites that must be cleaved by a nuclease 
E) none of the above

Question 2

What is contained within a homogeneously staining region?

Accepted Answer

A) a series of several replication origins 
B) a sequence of genes all under control of one promoter 
C) tandem duplicates of a specific gene 
D) a region of DNA created by a retrovirus 
E) none of the above 
A) a series of several replication origins 
B) a sequence of genes all under control of one promoter 
C) tandem duplicates of a specific gene 
D) a region of DNA created by a retrovirus 
E) none of the above

Question 3

Show the common base pair seen between 8-oxoguanine and adenine.

Accepted Answer

The answer of Show the common base pair seen between...

Question 4

What is the correct order of enzyme activities required for nucleotide excision repair?

Accepted Answer

A) exonuclease, helicase, polymerase, ligase 
B) exinuclease, helicase, polymerase, ligase 
C) exonuclease, polymerase, ligase, helicase 
D) exinuclease, polymerase, ligase, helicase 
E) exonuclease, ligase, polymerase, helicase 
A) exonuclease, helicase, polymerase, ligase 
B) exinuclease, helicase, polymerase, ligase 
C) exonuclease, polymerase, ligase, helicase 
D) exinuclease, polymerase, ligase, helicase 
E) exonuclease, ligase, polymerase, helicase

Question 5

What is the causative agent in the formation of a cyclobutane thymine dimer?

Accepted Answer

A) benzo[a]pyrene 
B) N-methyl-N'nitro-N-nitrosoguanidine 
C) methylnitrosourea 
D) ethylmethanesulfonate 
E) ultraviolet radiation 
A) benzo[a]pyrene 
B) N-methyl-N'nitro-N-nitrosoguanidine 
C) methylnitrosourea 
D) ethylmethanesulfonate 
E) ultraviolet radiation

How does RecA bring about strand exchange?

What is contained within a homogeneously staining region?

Show the common base pair seen between 8-oxoguanine and adenine.

What is the correct order of enzyme activities required for nucleotide excision repair?

What is the causative agent in the formation of a cyclobutane thymine dimer?

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

Information Readout: Transcription and Post-Transcriptional Processing

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

Filters

Exam 26: DNA Restructuring: Repair, Recombination, Rearrangement, Amplification

How does RecA bring about strand exchange?

What is contained within a homogeneously staining region?

Show the common base pair seen between 8-oxoguanine and adenine.

What is the correct order of enzyme activities required for nucleotide excision repair?

What is the causative agent in the formation of a cyclobutane thymine dimer?

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

Information Readout: Transcription and Post-Transcriptional Processing

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

Filters