Question 1

The loop of transfer RNA that interacts with the codon on mRNA in translation is called the:

Accepted Answer

A)  D loop 
B)  TF1F1F1S1F1F1F10C loop 
C)  Variable loop 
D)  Anticodon loop 
A)  D loop 
B)  TF1F1F1S1F1F1F10C loop 
C)  Variable loop 
D)  Anticodon loop D

Question 2

Multiple products are generated from the same gene by what mechanism?

Accepted Answer

A)  Alternative splicing 
B)  Polyadenylation 
C)  Capping 
A)  Alternative splicing 
B)  Polyadenylation 
C)  Capping A

Question 3

In the lactose operon, which of the following configurations would result in gene expression?

Accepted Answer

A)  Promoter +, Operator +, Repressor +, no inducer present 
B)  Promoter -, Operator +, Repressor +, no inducer present 
C)  Promoter -, Operator -, Repressor +, inducer present 
D)  Promoter +, Operator +, Repressor -, no inducer present 
A)  Promoter +, Operator +, Repressor +, no inducer present 
B)  Promoter -, Operator +, Repressor +, no inducer present 
C)  Promoter -, Operator -, Repressor +, inducer present 
D)  Promoter +, Operator +, Repressor -, no inducer present D

Question 4

Which of the following types of RNA is directly involved in removing introns from RNA in eukaryotes?

Accepted Answer

A)  Micro 
B)  Transfer 
C)  Small nuclear 
D)  Small interfering 
A)  Micro 
B)  Transfer 
C)  Small nuclear 
D)  Small interfering

Question 5

In transcription, what is the starting material, the ending material, and the major enzyme that catalyzes the process?

Accepted Answer

A)  DNA, RNA, DNA polymerase 
B)  RNA, protein, peptidyl transferase 
C)  RNA, DNA, reverse transcriptase 
D)  DNA, RNA, RNA polymerase 
A)  DNA, RNA, DNA polymerase 
B)  RNA, protein, peptidyl transferase 
C)  RNA, DNA, reverse transcriptase 
D)  DNA, RNA, RNA polymerase

Question 6

If the following oligonucleotide of double-stranded DNA were transcribed, what would be the sequence of the RNA? 5F1F1F1S1F1F1F10TGCTAGCTA3F1F1F1S1F1F1F10
3F1F1F1S1F1F1F10ACGATCGAT5F1F1F1S1F1F1F10

Accepted Answer

A)  5F1F1F1S1F1F1F10UGCUAGCUA3F1F1F1S1F1F1F10 
B)  5F1F1F1S1F1F1F10ACGAUCGAU3F1F1F1S1F1F1F10 
C)  3F1F1F1S1F1F1F10ACGATCGAT5F1F1F1S1F1F1F10 
D)  3F1F1F1S1F1F1F10ACGAUCGAU5F1F1F1S1F1F1F10 
A)  5F1F1F1S1F1F1F10UGCUAGCUA3F1F1F1S1F1F1F10 
B)  5F1F1F1S1F1F1F10ACGAUCGAU3F1F1F1S1F1F1F10 
C)  3F1F1F1S1F1F1F10ACGATCGAT5F1F1F1S1F1F1F10 
D)  3F1F1F1S1F1F1F10ACGAUCGAU5F1F1F1S1F1F1F10

Question 7

RNA is degraded by:

Accepted Answer

A)  Helicases 
B)  Polymerases 
C)  Ribonucleases 
D)  Methylases 
A)  Helicases 
B)  Polymerases 
C)  Ribonucleases 
D)  Methylases

Question 8

When gene expression is regulated by mechanisms other than the interaction of cis elements and trans factors, the regulation is called:

Accepted Answer

A)  Induction 
B)  Epigenetics 
C)  Attenuation 
D)  Combinatorial control 
A)  Induction 
B)  Epigenetics 
C)  Attenuation 
D)  Combinatorial control

Question 9

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 10

The most frequently methylated base in vertebrates is:

Accepted Answer

A)  Adenine 
B)  Cytosine 
C)  Guanine 
D)  Thymine 
A)  Adenine 
B)  Cytosine 
C)  Guanine 
D)  Thymine

Question 11

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 12

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 13

DNA sequences that are involved in the regulation of gene expression are called:

Accepted Answer

A)  Cis factors 
B)  Trans factors 
C)  Inducers 
D)  Repressors 
A)  Cis factors 
B)  Trans factors 
C)  Inducers 
D)  Repressors

Question 14

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 15

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 16

Which of the following is required for termination of transcription in bacteria?

Accepted Answer

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

Question 17

Which of the following enzymes performs transcription in bacteria?

Accepted Answer

A)  RNA-dependent DNA polymerase 
B)  DNA-dependent RNA polymerase 
C)  DNA-dependent DNA polymerase 
D)  RNA-dependent RNA polymerase 
A)  RNA-dependent DNA polymerase 
B)  DNA-dependent RNA polymerase 
C)  DNA-dependent DNA polymerase 
D)  RNA-dependent RNA polymerase

Question 18

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 19

Synthesis of RNA guided by a DNA template is:

Accepted Answer

A)  Translation 
B)  DNA replication 
C)  Transcription 
D)  Reverse transcription 
A)  Translation 
B)  DNA replication 
C)  Transcription 
D)  Reverse transcription

Question 20

What mechanism may explain the difference in symptoms in Prader-Willi and Angelman syndromes?

Accepted Answer

A)  Genomic imprinting 
B)  Alternative splicing 
C)  Genetic recombination 
D)  Capping 
A)  Genomic imprinting 
B)  Alternative splicing 
C)  Genetic recombination 
D)  Capping

The loop of transfer RNA that interacts with the codon on mRNA in translation is called the:

Multiple products are generated from the same gene by what mechanism?

In the lactose operon, which of the following configurations would result in gene expression?

Which of the following types of RNA is directly involved in removing introns from RNA in eukaryotes?

In transcription, what is the starting material, the ending material, and the major enzyme that catalyzes the process?

If the following oligonucleotide of double-stranded DNA were transcribed, what would be the sequence of the RNA? 5TGCTAGCTA3 3ACGATCGAT5

RNA is degraded by:

When gene expression is regulated by mechanisms other than the interaction of cis elements and trans factors, the regulation is called:

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

The most frequently methylated base in vertebrates is:

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

What is the secondary structure of transfer RNA?

DNA sequences that are involved in the regulation of gene expression are called:

Genomic imprinting is accomplished primarily through:

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

Which of the following is required for termination of transcription in bacteria?

Which of the following enzymes performs transcription in bacteria?

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

Synthesis of RNA guided by a DNA template is:

What mechanism may explain the difference in symptoms in Prader-Willi and Angelman syndromes?

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

Exam 2: RNA

The loop of transfer RNA that interacts with the codon on mRNA in translation is called the:

Multiple products are generated from the same gene by what mechanism?

In the lactose operon, which of the following configurations would result in gene expression?

Which of the following types of RNA is directly involved in removing introns from RNA in eukaryotes?

In transcription, what is the starting material, the ending material, and the major enzyme that catalyzes the process?

If the following oligonucleotide of double-stranded DNA were transcribed, what would be the sequence of the RNA? 5TGCTAGCTA3 3ACGATCGAT5

RNA is degraded by:

When gene expression is regulated by mechanisms other than the interaction of cis elements and trans factors, the regulation is called:

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

The most frequently methylated base in vertebrates is:

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

What is the secondary structure of transfer RNA?

DNA sequences that are involved in the regulation of gene expression are called:

Genomic imprinting is accomplished primarily through:

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

Which of the following is required for termination of transcription in bacteria?

Which of the following enzymes performs transcription in bacteria?

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

Synthesis of RNA guided by a DNA template is:

What mechanism may explain the difference in symptoms in Prader-Willi and Angelman syndromes?

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