Question 1

The large ribosome subunit in prokaryotes consists of ribosomal proteins and:

Accepted Answer

A)  16S rRNA 
B)  18S rRNA 
C)  23S rRNA and 5S rRNA 
D)  28S rRNA, 5S rRNA, and 5.8S rRNA 
A)  16S rRNA 
B)  18S rRNA 
C)  23S rRNA and 5S rRNA 
D)  28S rRNA, 5S rRNA, and 5.8S rRNA

Question 2

Genomic imprinting is accomplished primarily through:

Accepted Answer

A)  Methylation 
B)  Acetylation 
C)  Transcription 
D)  Cis and trans factor interactions 
A)  Methylation 
B)  Acetylation 
C)  Transcription 
D)  Cis and trans factor interactions

Question 3

Which of the following would prevent transcription of the lactose operon?

Accepted Answer

A)  Loss of promoter 
B)  Presence of inducer 
C)  Loss of the repressor protein 
D)  RNA polymerase binding to the promoter 
A)  Loss of promoter 
B)  Presence of inducer 
C)  Loss of the repressor protein 
D)  RNA polymerase binding to the promoter

Question 4

What is the secondary structure of transfer RNA?

Accepted Answer

A)  Cruciform, or inverted L 
B)  Hairpin 
C)  Triple helix, or triplex 
D)  Ring, or inverted C 
A)  Cruciform, or inverted L 
B)  Hairpin 
C)  Triple helix, or triplex 
D)  Ring, or inverted C

Question 5

Thalassemias arise from changes in what part of the beta-globin gene?

Accepted Answer

A)  3F1F1F1S1F1F1F10untranslated region 
B)  PolyA tail 
C)  Splice recognition site 
D)  Ribosome binding site 
A)  3F1F1F1S1F1F1F10untranslated region 
B)  PolyA tail 
C)  Splice recognition site 
D)  Ribosome binding site

Question 6

Alteration of the nucleotide sequence of RNA after transcription is called:

Accepted Answer

A)  Methylation 
B)  RNA silencing 
C)  RNA editing 
D)  Capping 
A)  Methylation 
B)  RNA silencing 
C)  RNA editing 
D)  Capping

Question 7

Which of the following is involved in termination of transcription in eukaryotes?

Accepted Answer

A)  RNA polymerase 
B)  Sigma 
C)  Rho 
D)  PolyA signal 
A)  RNA polymerase 
B)  Sigma 
C)  Rho 
D)  PolyA signal

Question 8

The RNA polymerase holoenzyme consists of which of the following subunits?

Accepted Answer

A)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
B)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
C)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
D)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
A)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
B)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
C)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10) 
D)  (F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10, F1F1F1S1F1F1F10)

Question 9

Which of the following is a cis factor of the lactose operon?

Accepted Answer

A)  Inducer 
B)  Operator 
C)  Repressor 
D)  Polymerase 
A)  Inducer 
B)  Operator 
C)  Repressor 
D)  Polymerase

Question 10

MicroRNAs, short endogenous RNA, perform what function in the eukaryotic cell?

Accepted Answer

A)  Controlling DNA replication 
B)  Priming RNA synthesis 
C)  RNA splicing 
D)  Repressing gene expression 
A)  Controlling DNA replication 
B)  Priming RNA synthesis 
C)  RNA splicing 
D)  Repressing gene expression

The large ribosome subunit in prokaryotes consists of ribosomal proteins and:

Genomic imprinting is accomplished primarily through:

Which of the following would prevent transcription of the lactose operon?

What is the secondary structure of transfer RNA?

Thalassemias arise from changes in what part of the beta-globin gene?

Alteration of the nucleotide sequence of RNA after transcription is called:

Which of the following is involved in termination of transcription in eukaryotes?

The RNA polymerase holoenzyme consists of which of the following subunits?

Which of the following is a cis factor of the lactose operon?

MicroRNAs, short endogenous RNA, perform what function in the eukaryotic cell?

DNA

Proteins

Nucleic Acid Extraction Methods

Resolution and Detection of Nucleic Acids

Analysis and Characterization of Nucleic Acids and Proteins

Nucleic Acid Amplification

Chromosomal Structure and Chromosomal Mutations

Gene Mutations

DNA Sequencing

DNA Polymorphisms and Human Identification

Detection and Identification of Microorganisms

Molecular Detection of Inherited Diseases

Molecular Oncology

DNA-Based Tissue Typing

Quality Assurance and Quality Control in the Molecular Laboratory

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Exam 2: RNA

The large ribosome subunit in prokaryotes consists of ribosomal proteins and:

Genomic imprinting is accomplished primarily through:

Which of the following would prevent transcription of the lactose operon?

What is the secondary structure of transfer RNA?

Thalassemias arise from changes in what part of the beta-globin gene?

Alteration of the nucleotide sequence of RNA after transcription is called:

Which of the following is involved in termination of transcription in eukaryotes?

The RNA polymerase holoenzyme consists of which of the following subunits?

Which of the following is a cis factor of the lactose operon?

MicroRNAs, short endogenous RNA, perform what function in the eukaryotic cell?

DNA

Proteins

Nucleic Acid Extraction Methods

Resolution and Detection of Nucleic Acids

Analysis and Characterization of Nucleic Acids and Proteins

Nucleic Acid Amplification

Chromosomal Structure and Chromosomal Mutations

Gene Mutations

DNA Sequencing

DNA Polymorphisms and Human Identification

Detection and Identification of Microorganisms

Molecular Detection of Inherited Diseases

Molecular Oncology

DNA-Based Tissue Typing

Quality Assurance and Quality Control in the Molecular Laboratory

Filters