Question 1

What region of a tRNA often contains large amounts of inosine?

Accepted Answer

A)  acceptor arm 
B)  D arm 
C)  T$\varPsi$C arm 
D)  anticodon loop 
E)  extra arm 
A)  acceptor arm 
B)  D arm 
C)  T$\varPsi$C arm 
D)  anticodon loop 
E)  extra arm

Question 2

In E.coli,the signal sequence that properly aligns the initiation codon in the P site is called the ______________________ sequence.

Accepted Answer

The answer of In E.coli,the signal sequence that properly aligns...

Question 3

Which of the following E.coli proteins is responsible for translocation of the mRNA as a result of a conformation change due to the hydrolysis of GTP?

Accepted Answer

A)  RRF 
B)  EF-Tu 
C)  EF-G 
D)  Shine-Dalgarno 
E)  None of the answers is correct. 
A)  RRF 
B)  EF-Tu 
C)  EF-G 
D)  Shine-Dalgarno 
E)  None of the answers is correct.

Question 4

Class ____________ aminoacyl-tRNA synthetases acylate the 2′ hydroxyl group of the terminal adenosine of tRNA.

Accepted Answer

The answer of Class ____________ aminoacyl-tRNA synthetases acylate the 2′...

Question 5

Proteins are synthesized in the __________________ direction.

Accepted Answer

N→ C or am

Question 6

The ribosome is thought to be

Accepted Answer

A)  an example of a catalyst that has survived from the RNA world. 
B)  unique to eukaryotes. 
C)  a ribozyme. 
D)  a protein catalyst. 
E)  an example of a catalyst that has survived from the RNA world and a ribozyme. 
A)  an example of a catalyst that has survived from the RNA world. 
B)  unique to eukaryotes. 
C)  a ribozyme. 
D)  a protein catalyst. 
E)  an example of a catalyst that has survived from the RNA world and a ribozyme.

Question 7

What proteins recognize UAA,UAG,and UGA codons?

Accepted Answer

A)  initiation factors 
B)  elongation factors 
C)  termination factors 
D)  release factors 
E)  30s ribosome subunit 
A)  initiation factors 
B)  elongation factors 
C)  termination factors 
D)  release factors 
E)  30s ribosome subunit

Question 8

How is a high level of fidelity maintained in attaching the amino acids to the tRNA structure?

Accepted Answer

The reaction has very high fidelity in r

Exam 30: Protein Synthesis

What region of a tRNA often contains large amounts of inosine?

In E.coli,the signal sequence that properly aligns the initiation codon in the P site is called the ______________________ sequence.

Which of the following E.coli proteins is responsible for translocation of the mRNA as a result of a conformation change due to the hydrolysis of GTP?

Class ____________ aminoacyl-tRNA synthetases acylate the 2′ hydroxyl group of the terminal adenosine of tRNA.

Proteins are synthesized in the __________________ direction.

The ribosome is thought to be

What proteins recognize UAA,UAG,and UGA codons?

How is a high level of fidelity maintained in attaching the amino acids to the tRNA structure?

Biochemistry: An Evolving Science

Protein Composition and Structure

Exploring Proteins and Proteomes

DNA, RNA, and the Flow of Genetic Information

Exploring Genes and Genomes

Exploring Evolution and Bioinformatics

Hemoglobin: a Portrait of a Protein in Action

Enzymes: Basic Concepts and Kinetics

Catalytic Strategies

Regulatory Strategies

Carbohydrates

Lipids and Cell Membranes

Membrane Channels and Pumps

Signal-Transduction Pathways

Metabolism: Basic Concepts and Design

Glycolysis and Gluconeogenesis

The Citric Acid Cycle

Oxidative Phosphorylation

The Light Reactions of Photosynthesis

The Calvin Cycle and the Pentose Phosphate Pathway

Glycogen Metabolism

Fatty Acid Metabolism

Protein Turnover and Amino Acid Catabolism

The Biosynthesis of Amino Acids

Nucleotide Biosynthesis

Biosynthesis of Membrane Lipids and Steroids

The Integration of Metabolism

DNA Replication, repair, and Recombination

RNA Synthesis and Processing

The Control of Gene Expression in Prokaryotes

The Control of Gene Expression in Eukaryotes

Sensory Systems

The Immune System

Molecular Motors

Drug Development

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