Question 1

The genes for the 5S, 5.8S and 28S rRNAs are found in tandem and transcribed as a unit.

Accepted Answer

A) True 
 B)False

Question 2

Transcription is _______-dependent _______ synthesis.

Accepted Answer

A)  DNA; DNA 
B)  DNA; RNA 
C)  RNA; DNA 
D)  RNA; protein 
A)  DNA; DNA 
B)  DNA; RNA 
C)  RNA; DNA 
D)  RNA; protein

Question 3

What are the two signals for polyadenylation of mRNA?

Accepted Answer

A highly conserved hexanucleot

Question 4

What are the five types of small nuclear RNAs that make up the spliceosome?

Accepted Answer

The five snRNAs that

Question 5

The 5′ end of messenger RNA is modified by

Accepted Answer

A)  polyadenylation. 
B)  ribothymidine addition. 
C)  methylation. 
D)  capping with 7-methylguanosine. 
A)  polyadenylation. 
B)  ribothymidine addition. 
C)  methylation. 
D)  capping with 7-methylguanosine.

Question 6

The regions of the DNA where RNA polymerase binds can be identified by

Accepted Answer

A)  restriction mapping. 
B)  PCR. 
C)  inhibited transcription following mutagenesis in the -35 and -10 promoter regions. 
D)  polymerase mapping. 
A)  restriction mapping. 
B)  PCR. 
C)  inhibited transcription following mutagenesis in the -35 and -10 promoter regions. 
D)  polymerase mapping.

Question 7

Which process both stabilizes and increases the efficiency of translation of an mRNA?

Accepted Answer

A)  Editing 
B)  Splicing 
C)  Addition of a 7-methylguanosine cap 
D)  Addition of the CCA sequence to the 3ʹ end 
A)  Editing 
B)  Splicing 
C)  Addition of a 7-methylguanosine cap 
D)  Addition of the CCA sequence to the 3ʹ end

Question 8

During transcriptional initiation in eukaryotes, _______ is responsible for phosphorylating RNA polymerase II C-terminal domain (CTD).

Accepted Answer

The answer of During transcriptional initiation in eukaryotes, _______ is...

Question 9

Self-splicing was discovered in studies of the

Accepted Answer

A)  pre-mRNAs of Tetrahymena. 
B)  pre-mRNAs of E. coli. 
C)  pre-rRNA of Tetrahymena. 
D)  pre-rRNA of E. coli. 
A)  pre-mRNAs of Tetrahymena. 
B)  pre-mRNAs of E. coli. 
C)  pre-rRNA of Tetrahymena. 
D)  pre-rRNA of E. coli.

Question 10

Sigma ($\sigma$) subunits of bacterial RNA polymerase initiate binding to the DNA and are released from the polymerase at the end of transcription.

Accepted Answer

A) True 
 B)False

Question 11

A ribozyme is defined as an enzyme

Accepted Answer

A)  in which an RNA molecule is responsible for the catalytic activity. 
B)  that catalyzes the cleavage of RNA. 
C)  that is involved in translation. 
D)  that catalyzes the addition of ribose moieties to RNA. 
A)  in which an RNA molecule is responsible for the catalytic activity. 
B)  that catalyzes the cleavage of RNA. 
C)  that is involved in translation. 
D)  that catalyzes the addition of ribose moieties to RNA.

Question 12

Explain why bacterial mRNAs need to be very unstable, usually having half-lives of about 2 to 3 minutes.

Accepted Answer

This rapid turnover allows the

Question 13

The signal for the addition of a poly-A tail to pre-mRNA is

Accepted Answer

A)  UUUUUUU. 
B)  TTTTTTTT. 
C)  AAUAAA. 
D)  GCGCUGC. 
A)  UUUUUUU. 
B)  TTTTTTTT. 
C)  AAUAAA. 
D)  GCGCUGC.

Question 14

Identify two functions of capping and polyadenylation of mRNA.

Accepted Answer

Capping and polyaden

Question 15

The 7-methylguanosine cap on mNRA is required for

Accepted Answer

A)  protecting an mRNA from exonuclease attack. 
B)  protecting an mRNA from endonuclease attack. 
C)  initiation of translation of the mRNA. 
D)  the addition of the poly-A tail. 
A)  protecting an mRNA from exonuclease attack. 
B)  protecting an mRNA from endonuclease attack. 
C)  initiation of translation of the mRNA. 
D)  the addition of the poly-A tail.

Question 16

The role of the sigma ($\sigma$) factor in prokaryote transcription is to

Accepted Answer

A)  unwind the DNA during transcription. 
B)  direct RNA polymerases to bind to different promoter regions. 
C)  recognize the transcription initiation site. 
D)  terminate transcription. 
A)  unwind the DNA during transcription. 
B)  direct RNA polymerases to bind to different promoter regions. 
C)  recognize the transcription initiation site. 
D)  terminate transcription.

Question 17

What are two reasons why eukaryotic transcription is considered to be more complex than bacterial transcription?

Accepted Answer

First, in bacteria, a single RNA polymer

Question 18

How was RNA editing first discovered?

Accepted Answer

It was first discovered in mit

Question 19

The predominant RNA synthesized by eukaryotic RNA polymerase II is _______.

Accepted Answer

The answer of The predominant RNA synthesized by eukaryotic RNA...

Question 20

Transcription of a bacterial gene is initiated

Accepted Answer

A)  with RNA polymerase in the closed-promoter complex. 
B)  after release of the sigma ($\sigma$) factor. 
C)  with RNA polymerase in the open-promoter complex. 
D)  Both b and c 
A)  with RNA polymerase in the closed-promoter complex. 
B)  after release of the sigma ($\sigma$) factor. 
C)  with RNA polymerase in the open-promoter complex. 
D)  Both b and c

The genes for the 5S, 5.8S and 28S rRNAs are found in tandem and transcribed as a unit.

Transcription is _-dependent _ synthesis.

What are the two signals for polyadenylation of mRNA?

What are the five types of small nuclear RNAs that make up the spliceosome?

The 5′ end of messenger RNA is modified by

The regions of the DNA where RNA polymerase binds can be identified by

Which process both stabilizes and increases the efficiency of translation of an mRNA?

During transcriptional initiation in eukaryotes, _______ is responsible for phosphorylating RNA polymerase II C-terminal domain (CTD).

Self-splicing was discovered in studies of the

Sigma ( $\sigma$ ) subunits of bacterial RNA polymerase initiate binding to the DNA and are released from the polymerase at the end of transcription.

A ribozyme is defined as an enzyme

Explain why bacterial mRNAs need to be very unstable, usually having half-lives of about 2 to 3 minutes.

The signal for the addition of a poly-A tail to pre-mRNA is

Identify two functions of capping and polyadenylation of mRNA.

The 7-methylguanosine cap on mNRA is required for

The role of the sigma ( $\sigma$ ) factor in prokaryote transcription is to

What are two reasons why eukaryotic transcription is considered to be more complex than bacterial transcription?

How was RNA editing first discovered?

The predominant RNA synthesized by eukaryotic RNA polymerase II is _______.

Transcription of a bacterial gene is initiated

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

Exam 8: RNA Synthesis and Processing

The genes for the 5S, 5.8S and 28S rRNAs are found in tandem and transcribed as a unit.

Transcription is _______-dependent _______ synthesis.

What are the two signals for polyadenylation of mRNA?

What are the five types of small nuclear RNAs that make up the spliceosome?

The 5′ end of messenger RNA is modified by

The regions of the DNA where RNA polymerase binds can be identified by

Which process both stabilizes and increases the efficiency of translation of an mRNA?

During transcriptional initiation in eukaryotes, _______ is responsible for phosphorylating RNA polymerase II C-terminal domain (CTD).

Self-splicing was discovered in studies of the

Sigma ( σ\sigmaσ ) subunits of bacterial RNA polymerase initiate binding to the DNA and are released from the polymerase at the end of transcription.

A ribozyme is defined as an enzyme

Explain why bacterial mRNAs need to be very unstable, usually having half-lives of about 2 to 3 minutes.

The signal for the addition of a poly-A tail to pre-mRNA is

Identify two functions of capping and polyadenylation of mRNA.

The 7-methylguanosine cap on mNRA is required for

The role of the sigma ( σ\sigmaσ ) factor in prokaryote transcription is to

What are two reasons why eukaryotic transcription is considered to be more complex than bacterial transcription?

How was RNA editing first discovered?

The predominant RNA synthesized by eukaryotic RNA polymerase II is _______.

Transcription of a bacterial gene is initiated

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

Transcription is _-dependent _ synthesis.

Sigma ( $\sigma$ ) subunits of bacterial RNA polymerase initiate binding to the DNA and are released from the polymerase at the end of transcription.

The role of the sigma ( $\sigma$ ) factor in prokaryote transcription is to