Question 1

Matching 
Choose the correct answer from the list. Not all the answers will be used.
-Some proteins are synthesized as inactive precursors called ______.

Accepted Answer

A) AUG 
B) sense 
C) release factors 
D) noninitiator 
E) hairpin
F)preproteins
G)genetic code
H)penicillin
I)proproteins
J)proofreading
K)UUA
L)synonyms
M)nucleotide cypher
N)streptomycin
O)nonsense
P)revising
Q)cloverleaf 
A) AUG 
B) sense 
C) release factors 
D) noninitiator 
E) hairpin
F)preproteins
G)genetic code
H)penicillin
I)proproteins
J)proofreading
K)UUA
L)synonyms
M)nucleotide cypher
N)streptomycin
O)nonsense
P)revising
Q)cloverleaf

Question 2

Considering elongation of peptides via ribosome-mediated peptide synthesis, how many ATP equivalents are required for addition of on amino acid to the growing peptide chain and translocation such that the assembly is prepared for the subsequent addition of another amino acid?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 3

The signal recognition particle (SRP)is a _____, and its function is to ______.

Accepted Answer

A) DNA:protein complex, transport proteins into the eukaryotic nucleus 
B) multisubunit protein, modify proteins 
C) ribosome complex, catalyze posttranslational modification 
D) ribonucleoprotein, bind the N-terminal end of growing polypeptides for membrane translocation 
E) none of the above 
A) DNA:protein complex, transport proteins into the eukaryotic nucleus 
B) multisubunit protein, modify proteins 
C) ribosome complex, catalyze posttranslational modification 
D) ribonucleoprotein, bind the N-terminal end of growing polypeptides for membrane translocation 
E) none of the above

Question 4

Proteins are properly folded with the assistance of

Accepted Answer

A) protein-conducting channels (PCCs). 
B) small ubiquitin-related modifiers (SUMOs). 
C) trigger factors. 
D) chaperones. 
E) signal recognition particles (SRPs). 
A) protein-conducting channels (PCCs). 
B) small ubiquitin-related modifiers (SUMOs). 
C) trigger factors. 
D) chaperones. 
E) signal recognition particles (SRPs).

Question 5

Matching 
Choose the correct answer from the list. Not all the answers will be used.
-A mutation that converts an aminoacyl-coding codon to a Stop codon is known as a ______ mutation.

Accepted Answer

A) AUG 
B) sense 
C) release factors 
D) noninitiator 
E) hairpin
F)preproteins
G)genetic code
H)penicillin
I)proproteins
J)proofreading
K)UUA
L)synonyms
M)nucleotide cypher
N)streptomycin
O)nonsense
P)revising
Q)cloverleaf 
A) AUG 
B) sense 
C) release factors 
D) noninitiator 
E) hairpin
F)preproteins
G)genetic code
H)penicillin
I)proproteins
J)proofreading
K)UUA
L)synonyms
M)nucleotide cypher
N)streptomycin
O)nonsense
P)revising
Q)cloverleaf

Question 6

Matching 
Choose the correct answer from the list. Not all the answers will be used.
-The fidelity of amino acid attachment to a tRNA is enhanced by the ______ ability of the corresponding aaRS.

Accepted Answer

A) AUG 
B) sense 
C) release factors 
D) noninitiator 
E) hairpin
F)preproteins
G)genetic code
H)penicillin
I)proproteins
J)proofreading
K)UUA
L)synonyms
M)nucleotide cypher
N)streptomycin
O)nonsense
P)revising
Q)cloverleaf 
A) AUG 
B) sense 
C) release factors 
D) noninitiator 
E) hairpin
F)preproteins
G)genetic code
H)penicillin
I)proproteins
J)proofreading
K)UUA
L)synonyms
M)nucleotide cypher
N)streptomycin
O)nonsense
P)revising
Q)cloverleaf

Question 7

The sequence steps involved in elongation of the newly synthesized protein are ordered as follows: (Note: AA=amino acid)

Accepted Answer

A) AA-tRNA binding, peptide bond formation, translocation, tRNA release. 
B) translocation, AA-tRNA binding, tRNA release, peptide bond formation. 
C) tRNA release, AA-tRNA binding, translocation, peptide bond formation. 
D) translocation, peptide bond formation, AA-tRNA binding, tRNA release. 
E) peptide bond formation, tRNA release, AA-tRNA binding, translocation. 
A) AA-tRNA binding, peptide bond formation, translocation, tRNA release. 
B) translocation, AA-tRNA binding, tRNA release, peptide bond formation. 
C) tRNA release, AA-tRNA binding, translocation, peptide bond formation. 
D) translocation, peptide bond formation, AA-tRNA binding, tRNA release. 
E) peptide bond formation, tRNA release, AA-tRNA binding, translocation.

Question 8

Which of the following is TRUE regarding the Shine-Dalgarno sequence?

Accepted Answer

A) It functions as a promoter sequence which recognizes and bonds the sigma factor. 
B) It is part of the operator sequence used to control translation. 
C) It is a nucleotide sequence involved in initiation of translation. 
D) It is a nucleotide sequence involved in termination of translation. 
E) none of the above 
A) It functions as a promoter sequence which recognizes and bonds the sigma factor. 
B) It is part of the operator sequence used to control translation. 
C) It is a nucleotide sequence involved in initiation of translation. 
D) It is a nucleotide sequence involved in termination of translation. 
E) none of the above

Question 9

Which of the following best describes the method used for error minimization or proofreading to ensure the correct charging of the tRNAs?

Accepted Answer

A) The enzymes catalyzing the addition always proofread after the first step. 
B) The enzymes catalyzing the addition always proofread after the second step. 
C) Some of the enzymes catalyzing the addition proofread after the first step, some after the second. 
D) Ribosomes themselves proofread the linkage when the AA-tRNA reaches the A site. 
E) No proofreading of this process occurs. 
A) The enzymes catalyzing the addition always proofread after the first step. 
B) The enzymes catalyzing the addition always proofread after the second step. 
C) Some of the enzymes catalyzing the addition proofread after the first step, some after the second. 
D) Ribosomes themselves proofread the linkage when the AA-tRNA reaches the A site. 
E) No proofreading of this process occurs.

Matching Choose the correct answer from the list. Not all the answers will be used. -Some proteins are synthesized as inactive precursors called ______.

Considering elongation of peptides via ribosome-mediated peptide synthesis, how many ATP equivalents are required for addition of on amino acid to the growing peptide chain and translocation such that the assembly is prepared for the subsequent addition of another amino acid?

The signal recognition particle (SRP)is a _, and its function is to __.

Proteins are properly folded with the assistance of

Matching Choose the correct answer from the list. Not all the answers will be used. -A mutation that converts an aminoacyl-coding codon to a Stop codon is known as a ______ mutation.

Matching Choose the correct answer from the list. Not all the answers will be used. -The fidelity of amino acid attachment to a tRNA is enhanced by the ______ ability of the corresponding aaRS.

The sequence steps involved in elongation of the newly synthesized protein are ordered as follows: (Note: AA=amino acid)

Which of the following is TRUE regarding the Shine-Dalgarno sequence?

Which of the following best describes the method used for error minimization or proofreading to ensure the correct charging of the tRNAs?

Introduction to the Chemistry of Life

Water

Nucleotides, Nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, Inhibition and Control

Biochemical Signaling

Introduction to Metabolism

Glycogen Metabolism and Gluconeogenesis

Glucose Catabolism

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

Dna Replication, Repair and Recombination

Transcription and Rna Processing

Regulation of Gene Expression

Filters

Exam 27: Translation

Matching Choose the correct answer from the list. Not all the answers will be used. -Some proteins are synthesized as inactive precursors called ______.

Considering elongation of peptides via ribosome-mediated peptide synthesis, how many ATP equivalents are required for addition of on amino acid to the growing peptide chain and translocation such that the assembly is prepared for the subsequent addition of another amino acid?

The signal recognition particle (SRP)is a _____, and its function is to ______.

Proteins are properly folded with the assistance of

Matching Choose the correct answer from the list. Not all the answers will be used. -A mutation that converts an aminoacyl-coding codon to a Stop codon is known as a ______ mutation.

Matching Choose the correct answer from the list. Not all the answers will be used. -The fidelity of amino acid attachment to a tRNA is enhanced by the ______ ability of the corresponding aaRS.

The sequence steps involved in elongation of the newly synthesized protein are ordered as follows: (Note: AA=amino acid)

Which of the following is TRUE regarding the Shine-Dalgarno sequence?

Which of the following best describes the method used for error minimization or proofreading to ensure the correct charging of the tRNAs?

Introduction to the Chemistry of Life

Water

Nucleotides, Nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, Inhibition and Control

Biochemical Signaling

Introduction to Metabolism

Glycogen Metabolism and Gluconeogenesis

Glucose Catabolism

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

Dna Replication, Repair and Recombination

Transcription and Rna Processing

Regulation of Gene Expression

Filters

The signal recognition particle (SRP)is a _, and its function is to __.