Question 1

The messenger hypothesis states that

Accepted Answer

A) messenger RNAs are very stable and are not destroyed. 
B) ribosomal RNAs carry the information for making proteins. 
C) messenger RNAs carry genetic information to ribosomes. 
D) new ribosome are made to transmit new genetic information. 
E) None of the choices are correct. 
A) messenger RNAs are very stable and are not destroyed. 
B) ribosomal RNAs carry the information for making proteins. 
C) messenger RNAs carry genetic information to ribosomes. 
D) new ribosome are made to transmit new genetic information. 
E) None of the choices are correct.

Question 2

Which of following codons would not be recognized by release factors during translation?

Accepted Answer

A) AUG 
B) UAG 
C) UAA 
D) UGA 
E) none of the choices are correct. 
A) AUG 
B) UAG 
C) UAA 
D) UGA 
E) none of the choices are correct.

Question 3

Which of the following is not present in eukaryotes?

Accepted Answer

A) aminoacyl-tRNA synthetase 
B) Shine-Dalgarno sequence 
C) peptidyl transferase 
D) EF-Tu 
E) EF-G 
A) aminoacyl-tRNA synthetase 
B) Shine-Dalgarno sequence 
C) peptidyl transferase 
D) EF-Tu 
E) EF-G

Question 4

In an experiment conducted to test the messenger hypothesis,which states that messenger RNA carry the genetic information,35S was used instead of 32P.What is one possible outcome of this experiment?

Accepted Answer

A) The phage RNA would be label along the entire molecule. 
B) No label would be found in the RNA. 
C) The DNA of the host bacteria would be labeled. 
D) The ribosomal RNA would be labeled. 
E) All of the choices are possible outcomes. 
A) The phage RNA would be label along the entire molecule. 
B) No label would be found in the RNA. 
C) The DNA of the host bacteria would be labeled. 
D) The ribosomal RNA would be labeled. 
E) All of the choices are possible outcomes.

Question 5

Which of the following is prevalent in protein secondary structures?

Accepted Answer

A) ionic bonds 
B) hydrogen bonds 
C) disulfide bonds 
D) hydrophobic interactions 
E) all of the choices are correct. 
A) ionic bonds 
B) hydrogen bonds 
C) disulfide bonds 
D) hydrophobic interactions 
E) all of the choices are correct.

Question 6

Predict the consequence of treating the 70S ribosomal with urea:

Accepted Answer

A) the RNA portion would be degraded. 
B) the unit would be undisturbed. 
C) the protein component would be degraded. 
D) the unit would dissociate the RNA and protein components. 
E) the treatment would lead to tighter association between RNA components. 
A) the RNA portion would be degraded. 
B) the unit would be undisturbed. 
C) the protein component would be degraded. 
D) the unit would dissociate the RNA and protein components. 
E) the treatment would lead to tighter association between RNA components.

Question 7

In liver cells,the production of compound (6 C)is blocked by a defect in the enzyme e3: Which of the following is the best way to restore the production of C6?

Accepted Answer

A) Reduce the level of C1. 
B) Reduce the level of C3. 
C) Treat cells by supplying e4. 
D) Treat cells by supplying c4. 
E) Block the formation of C5.   
A) Reduce the level of C1. 
B) Reduce the level of C3. 
C) Treat cells by supplying e4. 
D) Treat cells by supplying c4. 
E) Block the formation of C5.

Question 8

The linear order of amino acids constitutes a protein's _____________structure.

Accepted Answer

The answer of The linear order of amino acids constitutes...

Question 9

A gene can accept occasional changes or alterations to its sequence,which allows organisms to evolve.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is least likely to contribute to a shift in the reading frame in an mRNA molecule?

Accepted Answer

A) removal of one base 
B) removal of two bases 
C) removal of a three bases 
D) removal of four bases 
E) none of the choices are correct. 
A) removal of one base 
B) removal of two bases 
C) removal of a three bases 
D) removal of four bases 
E) none of the choices are correct.

The messenger hypothesis states that

Which of following codons would not be recognized by release factors during translation?

Which of the following is not present in eukaryotes?

In an experiment conducted to test the messenger hypothesis,which states that messenger RNA carry the genetic information,35S was used instead of 32P.What is one possible outcome of this experiment?

Which of the following is prevalent in protein secondary structures?

Predict the consequence of treating the 70S ribosomal with urea:

In liver cells,the production of compound (6 C)is blocked by a defect in the enzyme e3: Which of the following is the best way to restore the production of C6?

The linear order of amino acids constitutes a protein's _____________structure.

A gene can accept occasional changes or alterations to its sequence,which allows organisms to evolve.

Which of the following is least likely to contribute to a shift in the reading frame in an mRNA molecule?

A Brief History

The Molecular Nature of Genes

Molecular Cloning Methods

Molecular Tools for Studying Genes and Gene Activity

The Mechanism of Transcription in Bacteria

Operons: Fine Control of Bacterial Transcription

Major Shifts in Bacterial Transcription

Dna-Protein Interactions in Bacteria

Eukaryotic Rna Polymerases and Their Promoters

General Transcription Factors in Eukaryotes

Transcription Activators in Eukaryotes

Chromatin Structure and Its Effect on Transcription

Rna Processing I: Splicing

Rna Processing II: Capping and Polyadenylation

Rna Processing: Other Post-Transcriptional Events

The Mechanism of Translation I: Initiation

The Mechanism of Translation II: Elongation and Termination

Ribosomes and Transfer Rna

Dna Replication,damage and Repair

Dna Replication II: Detailed Mechanism

Homologous Recombination

Transposition

Introduction to Genomics: Dna Sequencing on a Genomic Scale

Genomics II: Functional Genomics,proteomics and Bioinformatics

Filters

Exam 3: An Introduction to Gene Function

The messenger hypothesis states that

Which of following codons would not be recognized by release factors during translation?

Which of the following is not present in eukaryotes?

In an experiment conducted to test the messenger hypothesis,which states that messenger RNA carry the genetic information,35S was used instead of 32P.What is one possible outcome of this experiment?

Which of the following is prevalent in protein secondary structures?

Predict the consequence of treating the 70S ribosomal with urea:

In liver cells,the production of compound (6 C)is blocked by a defect in the enzyme e3: Which of the following is the best way to restore the production of C6?

The linear order of amino acids constitutes a protein's _____________structure.

A gene can accept occasional changes or alterations to its sequence,which allows organisms to evolve.

Which of the following is least likely to contribute to a shift in the reading frame in an mRNA molecule?

A Brief History

The Molecular Nature of Genes

Molecular Cloning Methods

Molecular Tools for Studying Genes and Gene Activity

The Mechanism of Transcription in Bacteria

Operons: Fine Control of Bacterial Transcription

Major Shifts in Bacterial Transcription

Dna-Protein Interactions in Bacteria

Eukaryotic Rna Polymerases and Their Promoters

General Transcription Factors in Eukaryotes

Transcription Activators in Eukaryotes

Chromatin Structure and Its Effect on Transcription

Rna Processing I: Splicing

Rna Processing II: Capping and Polyadenylation

Rna Processing: Other Post-Transcriptional Events

The Mechanism of Translation I: Initiation

The Mechanism of Translation II: Elongation and Termination

Ribosomes and Transfer Rna

Dna Replication,damage and Repair

Dna Replication II: Detailed Mechanism

Homologous Recombination

Transposition

Introduction to Genomics: Dna Sequencing on a Genomic Scale

Genomics II: Functional Genomics,proteomics and Bioinformatics

Filters