Question 1

Which of the following is the binding site for the repressor protein of the lactose operon?

Accepted Answer

A)  P site 
B)  Operator 
C)  A site 
D)  Promoter 
A)  P site 
B)  Operator 
C)  A site 
D)  Promoter B

Question 2

RNA and DNA are structurally similar because they both:

Accepted Answer

A)  Have ribose as their sugar moiety 
B)  Consist of a single strand that folds on itself 
C)  Consist of two complementary strands 
D)  Are polymers of four different nucleotide bases 
A)  Have ribose as their sugar moiety 
B)  Consist of a single strand that folds on itself 
C)  Consist of two complementary strands 
D)  Are polymers of four different nucleotide bases D

Question 3

Which component of RNA polymerase is responsible for initiating transcription at the correct site?

Accepted Answer

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

Question 4

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

Question 5

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 6

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 7

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 8

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 9

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

Question 10

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

Question 11

In an RNA molecule, adenine always base-pairs with:

Accepted Answer

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

Question 12

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 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

Transfer RNA is different from other types of RNA because transfer RNA has:

Accepted Answer

A)  A 3F1F1F1S1F1F1F10polyA tail 
B)  Introns and exons 
C)  A 3F1F1F1S1F1F1F10methylated cap 
D)  Anticodons 
A)  A 3F1F1F1S1F1F1F10polyA tail 
B)  Introns and exons 
C)  A 3F1F1F1S1F1F1F10methylated cap 
D)  Anticodons

Question 15

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 16

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

Question 17

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 18

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 19

Synthesis of DNA guided by a RNA 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

RNA is degraded by:

Accepted Answer

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

Which of the following is the binding site for the repressor protein of the lactose operon?

RNA and DNA are structurally similar because they both:

Which component of RNA polymerase is responsible for initiating transcription at the correct site?

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

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

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

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

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

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

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

In an RNA molecule, adenine always base-pairs with:

Which of the following enzymes performs transcription in bacteria?

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

Transfer RNA is different from other types of RNA because transfer RNA has:

The most frequently methylated base in vertebrates is:

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

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

Synthesis of RNA guided by a DNA template is:

Synthesis of DNA guided by a RNA template is:

RNA is degraded by:

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

Which of the following is the binding site for the repressor protein of the lactose operon?

RNA and DNA are structurally similar because they both:

Which component of RNA polymerase is responsible for initiating transcription at the correct site?

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

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

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

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

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

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

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

In an RNA molecule, adenine always base-pairs with:

Which of the following enzymes performs transcription in bacteria?

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

Transfer RNA is different from other types of RNA because transfer RNA has:

The most frequently methylated base in vertebrates is:

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

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

Synthesis of RNA guided by a DNA template is:

Synthesis of DNA guided by a RNA template is:

RNA is degraded by:

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