Question 1

Which of the following RNAs is RNA polymerase II not responsible for transcribing?

Accepted Answer

A)  mRNA 
B)  miRNA 
C)  tRNA 
D)  lncRNA 
A)  mRNA 
B)  miRNA 
C)  tRNA 
D)  lncRNA

Question 2

The RNA components of spliceosomes are five types of _______.

Accepted Answer

snRNAs (sm

Question 3

RNA splicing takes place in large complexes called _______.

Accepted Answer

The answer of RNA splicing takes place in large complexes...

Question 4

Processing of RNA transcripts occurs

Accepted Answer

A)  only in eukaryotic cells. 
B)  only with mRNA transcripts. 
C)  only with rRNA and mRNA transcripts. 
D)  with tRNA, rRNA, and mRNA transcripts. 
A)  only in eukaryotic cells. 
B)  only with mRNA transcripts. 
C)  only with rRNA and mRNA transcripts. 
D)  with tRNA, rRNA, and mRNA transcripts.

Question 5

Release of RNA polymerase II to initiate transcription appears to be the direct result of the

Accepted Answer

A)  binding of TAFs to the polymerase. 
B)  unwinding of the DNA by helicases. 
C)  phosphorylation of RNA polymerase by a protein kinase. 
D)  removal of the nucleosome occupying the promoter site. 
A)  binding of TAFs to the polymerase. 
B)  unwinding of the DNA by helicases. 
C)  phosphorylation of RNA polymerase by a protein kinase. 
D)  removal of the nucleosome occupying the promoter site.

Question 6

Explain why the lariat structure that is formed as an intermediate in RNA splicing could not be formed in a DNA molecule.

Accepted Answer

The first step of splicing is cleavage a

Question 7

Processing of tRNAs involves addition of a CCA 5′ terminus.

Accepted Answer

A) True 
 B)False

Question 8

mRNAs are degraded in the cytoplasm by

Accepted Answer

A)  shortening of the poly-A tail and degradation from the 3′ end by nucleases. 
B)  removal of the 5′ cap and degradation from the 5′ end by nucleases. 
C)  Both a and b 
D)  Neither a nor b 
A)  shortening of the poly-A tail and degradation from the 3′ end by nucleases. 
B)  removal of the 5′ cap and degradation from the 5′ end by nucleases. 
C)  Both a and b 
D)  Neither a nor b

Question 9

The large multi-subunit complex that links the general transcription factors to the gene-specific transcription factors is called

Accepted Answer

A)  the transcription complex. 
B)  Mediator. 
C)  the operator. 
D)  TBP. 
A)  the transcription complex. 
B)  Mediator. 
C)  the operator. 
D)  TBP.

Question 10

Eukaryotic RNA polymerase III synthesizes _______.

Accepted Answer

The answer of Eukaryotic RNA polymerase III synthesizes _______....

Question 11

What important information was revealed by the discovery of catalytic RNAs?

Accepted Answer

Biologists had long puzzled over the nee

Question 12

Which statement about transcriptional termination in prokaryotes is false?

Accepted Answer

A)  Termination is signaled by transcription of a GC-rich interval. 
B)  Transcription terminates when the RNA polymerase dissociates from its DNA template. 
C)  The ribosome comes to a UAA, UAG, or UGA stop codon, and transcription ceases. 
D)  A segment of RNA forms a stable stem-loop structure by complementary base pairing. 
A)  Termination is signaled by transcription of a GC-rich interval. 
B)  Transcription terminates when the RNA polymerase dissociates from its DNA template. 
C)  The ribosome comes to a UAA, UAG, or UGA stop codon, and transcription ceases. 
D)  A segment of RNA forms a stable stem-loop structure by complementary base pairing.

Question 13

Suppose that a gene has three exons and two introns in the following order:
5ʹ exon 1 - intron 1 - exon 2 - intron 2 - exon 3 3ʹ
Which of the following could not result from alternative splicing in this gene?

Accepted Answer

A)  5ʹ exon 1 - exon 2 - exon 3 3ʹ 
B)  5ʹ exon 2 - exon 3 3ʹ 
C)  5ʹ exon 2 - exon 1 3ʹ 
D)  5ʹ exon 1 - exon 3 3ʹ 
A)  5ʹ exon 1 - exon 2 - exon 3 3ʹ 
B)  5ʹ exon 2 - exon 3 3ʹ 
C)  5ʹ exon 2 - exon 1 3ʹ 
D)  5ʹ exon 1 - exon 3 3ʹ

Question 14

Eukaryotic RNA polymerase I genes code for

Accepted Answer

A)  mRNAs. 
B)  tRNAs. 
C)  small nuclear RNAs and small cytoplasmic RNAs. 
D)  ribosomal RNAs. 
A)  mRNAs. 
B)  tRNAs. 
C)  small nuclear RNAs and small cytoplasmic RNAs. 
D)  ribosomal RNAs.

Question 15

The $\sigma$subunit of E. coli RNA polymerase is necessary for transcriptional elongation.

Accepted Answer

A) True 
 B)False

Question 16

All of the following are general transcription factors used in eukaryotic transcription except

Accepted Answer

A)  TFIIE 
B)  TFIIH 
C)  TBP 
D)  BRE 
A)  TFIIE 
B)  TFIIH 
C)  TBP 
D)  BRE

Question 17

A process called alternative splicing of mRNA transcripts can produce mRNAs with _______ from the same gene.

Accepted Answer

A)  one different exon 
B)  more or fewer exons 
C)  completely different exons 
D)  All of the above 
A)  one different exon 
B)  more or fewer exons 
C)  completely different exons 
D)  All of the above

Question 18

The processing of pre-rRNA requires proteins and RNAs that are localized to the nucleolus.

Accepted Answer

A) True 
 B)False

Question 19

The DNA sequence to which an RNA polymerase binds to initiate transcription of a gene is called a(n)

Accepted Answer

A)  enhancer. 
B)  promoter. 
C)  polymerase-binding element. 
D)  origin of transcription. 
A)  enhancer. 
B)  promoter. 
C)  polymerase-binding element. 
D)  origin of transcription.

Question 20

Processing of pre-tRNAs to produce tRNAs involves

Accepted Answer

A)  cleavage of the pre-tRNA. 
B)  CCA addition to the 5ʹ end. 
C)  phosphodiesterase activity to cleave the base and deoxyribose. 
D)  the removal of one intron. 
A)  cleavage of the pre-tRNA. 
B)  CCA addition to the 5ʹ end. 
C)  phosphodiesterase activity to cleave the base and deoxyribose. 
D)  the removal of one intron.

Which of the following RNAs is RNA polymerase II not responsible for transcribing?

The RNA components of spliceosomes are five types of _______.

RNA splicing takes place in large complexes called _______.

Processing of RNA transcripts occurs

Release of RNA polymerase II to initiate transcription appears to be the direct result of the

Explain why the lariat structure that is formed as an intermediate in RNA splicing could not be formed in a DNA molecule.

Processing of tRNAs involves addition of a CCA 5′ terminus.

mRNAs are degraded in the cytoplasm by

The large multi-subunit complex that links the general transcription factors to the gene-specific transcription factors is called

Eukaryotic RNA polymerase III synthesizes _______.

What important information was revealed by the discovery of catalytic RNAs?

Which statement about transcriptional termination in prokaryotes is false?

Suppose that a gene has three exons and two introns in the following order: 5ʹ exon 1 - intron 1 - exon 2 - intron 2 - exon 3 3ʹ Which of the following could not result from alternative splicing in this gene?

Eukaryotic RNA polymerase I genes code for

The $\sigma$ subunit of E. coli RNA polymerase is necessary for transcriptional elongation.

All of the following are general transcription factors used in eukaryotic transcription except

A process called alternative splicing of mRNA transcripts can produce mRNAs with _______ from the same gene.

The processing of pre-rRNA requires proteins and RNAs that are localized to the nucleolus.

The DNA sequence to which an RNA polymerase binds to initiate transcription of a gene is called a(n)

Processing of pre-tRNAs to produce tRNAs involves

An Overview of Cells and Cell Research

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

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Exam 8: RNA Synthesis and Processing

Which of the following RNAs is RNA polymerase II not responsible for transcribing?

The RNA components of spliceosomes are five types of _______.

RNA splicing takes place in large complexes called _______.

Processing of RNA transcripts occurs

Release of RNA polymerase II to initiate transcription appears to be the direct result of the

Explain why the lariat structure that is formed as an intermediate in RNA splicing could not be formed in a DNA molecule.

Processing of tRNAs involves addition of a CCA 5′ terminus.

mRNAs are degraded in the cytoplasm by

The large multi-subunit complex that links the general transcription factors to the gene-specific transcription factors is called

Eukaryotic RNA polymerase III synthesizes _______.

What important information was revealed by the discovery of catalytic RNAs?

Which statement about transcriptional termination in prokaryotes is false?

Suppose that a gene has three exons and two introns in the following order: 5ʹ exon 1 - intron 1 - exon 2 - intron 2 - exon 3 3ʹ Which of the following could not result from alternative splicing in this gene?

Eukaryotic RNA polymerase I genes code for

The σ\sigmaσ subunit of E. coli RNA polymerase is necessary for transcriptional elongation.

All of the following are general transcription factors used in eukaryotic transcription except

A process called alternative splicing of mRNA transcripts can produce mRNAs with _______ from the same gene.

The processing of pre-rRNA requires proteins and RNAs that are localized to the nucleolus.

The DNA sequence to which an RNA polymerase binds to initiate transcription of a gene is called a(n)

Processing of pre-tRNAs to produce tRNAs involves

An Overview of Cells and Cell Research

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters

The $\sigma$ subunit of E. coli RNA polymerase is necessary for transcriptional elongation.