Dna Restructuring Repairrecombinationrearrangementamplification - Biochemistry | Biology+

Course

Biochemistry

Study Pack

Set 1: The Scope of Biochemistry

Set 2: The Matrix of Life: Weak Interactions in an Aqueous Environment

Set 3: The Energetics of Life

Set 4: Nucleic Acids

Set 5: Introduction to Proteins: the Primary Level of Protein Structure

Set 6: The Three-Dimensional Structure of Proteins

Set 7: Protein Function and Evolution

Set 8: Contractile Proteins and Molecular Motors

Set 9: Carbohydrates: Sugars,saccharides,glycans

Set 10: Lipids,membranes and Cellular Transport

Set 11: Enzymes: Biological Catalysts

Set 12: Chemical Logic of Metabolism

Set 13: Carbohydrate Metabolism: Glycolysis, gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Set 14: Citric Acid Cycle and Glyoxylate Cycle

Set 15: Electron Transport, oxidative Phosphorylation, and Oxygen Metabolism

Set 16: Photosynthesis

Set 17: Lipid Metabolism I: Fatty Acids,triacylglycerols,and Lipoproteins

Set 18: Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Set 19: Lipid Metabolism Ii: Membrane Lipids, steroids, isoprenoids, and Eicosanoids

Set 20: Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, utilization, and Turnover

Set 21: Metabolism of Nitogenous Compounds Ii: Amino Acids, porphyrins, and Neurotransmitters

Set 22: Nucleotide Metabolism

Set 23: Mechanisms of Signal Transduction

Set 24: Genes,genomes and Chromosomes

Set 25: Dna Replication

Set 26: Dna Restructuring: Repair,recombination,rearrangement,amplification

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

Set 28: Information Decoding: Translation and Post-Translational Protein Processing

Set 29: Regulation of Gene Expression

Set 26 Dna Restructuring Repairrecombinationrearrangementamplification

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Set 26 Dna Restructuring Repairrecombinationrearrangementamplification

(Multiple Choice)

Free

Which of the following coenzymes forms the photochemical reaction center of DNA photolyase?

A)NADH
B)thiamine pyrophosphate
C)biotin
D)FADH^-
E)5-methyltetrahydrofolate

Answer

(Multiple Choice)

Free

One mechanism to introduce greater diversity into antibody sequences is somatic hypermutation.What enzyme is responsible for somatic hypermutation in the DNA sequences that code for antibodies?

A)deoxyadenosine deaminase
B)deoxycytidine deaminase
C)deoxyadenosine transaminase
D)purine-pyrimidine transposase
E)none of the above

Answer

(Multiple Choice)

Free

Methylation of guanine to produce O⁶-methylguanine (mG)results in what change to DNA?

A)mG frequently pairs with thymine resulting in a GC

\to

AT mutation
B)mG loses its methoxy group resulting in hydrogen bonding with adenine and a bulge in the double helix
C)mG is prone to deamination and eventually,depurination
D)repair of mG adducts uses a radical mechanism that has the potential to further damage adjacent bases,particularly thymine
E)none of the above

Answer