Information Readout Transcription And Post Transcriptional Processing - 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 27 Information Readout Transcription And Post Transcriptional Processing

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Set 27 Information Readout Transcription And Post Transcriptional Processing

(Multiple Choice)

Free

Which subunit of E.coli RNA polymerase is responsible for the RNA polymerization reaction?

A)

\alpha

B)

\beta

C)

\beta

'
D)

\sigma

E)

\omega

Answer

(Multiple Choice)

Free

Which of the following is the first event in the post-translational processing of an E.coli tRNA?

A)ribonuclease P cleavage to create the proper 5' end of the molecule
B)methylation of guanine residues
C)conversion of some uridine residues to pseudouridine
D)endonuclease cleavage of about 170 bases from the 3' end of the molecule
E)removal of 9 nucleotides from the 3' end by ribonuclease D

Answer

(Multiple Choice)

Free

The concept of the operon was proposed based on the ability of E.coli to metabolize the disaccharide ________ only when present in large excess over glucose.

A)sucrose
B)cellobiose
C)galactose
D)lactose
E)maltose

Answer