Question 1

Matching
Choose the correct answer from the list.Not all the answers will be used.

-Cell death caused by trauma is called ______.

Accepted Answer

A)  globin 
B)  M phase 
C)  G0 phase 
D)  necrosis 
E)  euchromatin
F) S phase
G) riboswitch
H) histone
I) insulators
J) heterochromatin
K) Mediator
L) 1,6-allolactose
M) apoptosis
N) orphan
O) galactose 
A)  globin 
B)  M phase 
C)  G0 phase 
D)  necrosis 
E)  euchromatin
F) S phase
G) riboswitch
H) histone
I) insulators
J) heterochromatin
K) Mediator
L) 1,6-allolactose
M) apoptosis
N) orphan
O) galactose

Question 2

Euchromatin is

Accepted Answer

A) DNA that is tightly condensed and transcriptionally active. 
B) DNA that is tightly condensed and transcriptionally inactive. 
C) DNA that is not condensed and transcriptionally active. 
D) DNA that is not condensed and transcriptionally inactive. 
E) DNA that is not condensed,but may or may not be transcriptionally active. 
A) DNA that is tightly condensed and transcriptionally active. 
B) DNA that is tightly condensed and transcriptionally inactive. 
C) DNA that is not condensed and transcriptionally active. 
D) DNA that is not condensed and transcriptionally inactive. 
E) DNA that is not condensed,but may or may not be transcriptionally active.

Question 3

Which of the following events are necessary for efficient expression of the lac operon?
(I)The lac repressor must bind inducer and dissociate from the operator site.
(II)CAP must bind cAMP.
(III)CAP and the repressor must simultaneously bind to RNAP.

Accepted Answer

A) I,II,III 
B) I,II 
C) I,III 
D) II,III 
E) I only 
A) I,II,III 
B) I,II 
C) I,III 
D) II,III 
E) I only

Question 4

Hormone response elements
(I)are DNA segments that contain repeated sequences separated by several bases.
(II)bind members of the nuclear receptor superfamily of proteins.
(III)are highly conserved sequences found in prokaryotic and eukaryotic cells.

Accepted Answer

A) I,II,III 
B) I,II 
C) II,III 
D) I,III 
E) II only 
A) I,II,III 
B) I,II 
C) II,III 
D) I,III 
E) II only

Question 5

Which stage of transcription does the lac repressor affect in order to accomplish its function?

Accepted Answer

A) initial binding of RNAP to the promoter DNA 
B) initiation of transcription after RNAP has bound the promoter 
C) preventing abortive initiation 
D) transcription termination 
E) none of the above 
A) initial binding of RNAP to the promoter DNA 
B) initiation of transcription after RNAP has bound the promoter 
C) preventing abortive initiation 
D) transcription termination 
E) none of the above

Question 6

A database of _____ is being compiled to examine possible genetic links to the susceptibility to disease or infection..

Accepted Answer

A) CpG islands 
B) ORFs 
C) SNPs 
D) LINEs 
E) SINEs 
A) CpG islands 
B) ORFs 
C) SNPs 
D) LINEs 
E) SINEs

Question 7

HMG proteins are
(I)a set of small conserved proteins containing about 50% charged amino acids.
(II)regulation elements Moderated by the trp attenuation leader sequence.
(III)able to alter DNA conformation by causing it to bend,unwind,and form loops.
IV)architectural proteins that regulate gene expression.

Accepted Answer

A) I,II 
B) I,III 
C) II,IV 
D) I,III,IV 
E) I,II,III 
A) I,II 
B) I,III 
C) II,IV 
D) I,III,IV 
E) I,II,III

Question 8

"Programmed" cell death is called

Accepted Answer

A) imprinting. 
B) silencing. 
C) necrosis. 
D) coactivation. 
E) apoptosis. 
A) imprinting. 
B) silencing. 
C) necrosis. 
D) coactivation. 
E) apoptosis.

Question 9

Matching
Choose the correct answer from the list.Not all the answers will be used.

-To induce expression of the lac operon,_______ can be added to the cell medium.

Accepted Answer

A)  globin 
B)  M phase 
C)  G0 phase 
D)  necrosis 
E)  euchromatin
F) S phase
G) riboswitch
H) histone
I) insulators
J) heterochromatin
K) Mediator
L) 1,6-allolactose
M) apoptosis
N) orphan
O) galactose 
A)  globin 
B)  M phase 
C)  G0 phase 
D)  necrosis 
E)  euchromatin
F) S phase
G) riboswitch
H) histone
I) insulators
J) heterochromatin
K) Mediator
L) 1,6-allolactose
M) apoptosis
N) orphan
O) galactose

Question 10

How do steroid hormones influence gene expression?

Accepted Answer

A) They bind cell surface receptors which influence the concentration of second messengers. 
B) They migrate between the cytosol and nucleus binding the hormone response elements to affect transcription. 
C) They bind to histones,influencing their ability to form nucleosomes. 
D) They bind to histones,influencing their ability to be methylated. 
E) None of the above. 
A) They bind cell surface receptors which influence the concentration of second messengers. 
B) They migrate between the cytosol and nucleus binding the hormone response elements to affect transcription. 
C) They bind to histones,influencing their ability to form nucleosomes. 
D) They bind to histones,influencing their ability to be methylated. 
E) None of the above.

Matching Choose the correct answer from the list.Not all the answers will be used. -Cell death caused by trauma is called ______.

Euchromatin is

Which of the following events are necessary for efficient expression of the lac operon? (I)The lac repressor must bind inducer and dissociate from the operator site. (II)CAP must bind cAMP. (III)CAP and the repressor must simultaneously bind to RNAP.

Hormone response elements (I)are DNA segments that contain repeated sequences separated by several bases. (II)bind members of the nuclear receptor superfamily of proteins. (III)are highly conserved sequences found in prokaryotic and eukaryotic cells.

Which stage of transcription does the lac repressor affect in order to accomplish its function?

A database of _____ is being compiled to examine possible genetic links to the susceptibility to disease or infection..

"Programmed" cell death is called

Matching Choose the correct answer from the list.Not all the answers will be used. -To induce expression of the lac operon,_______ can be added to the cell medium.

How do steroid hormones influence gene expression?

Introduction to the Chemistry of Life

Water

Nucleotides, nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, inhibition and Control

Biochemical Signaling

Introduction to Metabolism

Glucose Catabolism

Glycogen Metabolism and Gluconeogenesis

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

DNA Replication, repair and Recombination

Transcription and Rna Processing

Protein Synthesis

Filters

Exam 28: Regulation of Gene Expression

Matching Choose the correct answer from the list.Not all the answers will be used. -Cell death caused by trauma is called ______.

Euchromatin is

Which of the following events are necessary for efficient expression of the lac operon? (I)The lac repressor must bind inducer and dissociate from the operator site. (II)CAP must bind cAMP. (III)CAP and the repressor must simultaneously bind to RNAP.

Hormone response elements (I)are DNA segments that contain repeated sequences separated by several bases. (II)bind members of the nuclear receptor superfamily of proteins. (III)are highly conserved sequences found in prokaryotic and eukaryotic cells.

Which stage of transcription does the lac repressor affect in order to accomplish its function?

A database of _____ is being compiled to examine possible genetic links to the susceptibility to disease or infection..

"Programmed" cell death is called

Matching Choose the correct answer from the list.Not all the answers will be used. -To induce expression of the lac operon,_______ can be added to the cell medium.

How do steroid hormones influence gene expression?

Introduction to the Chemistry of Life

Water

Nucleotides, nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, inhibition and Control

Biochemical Signaling

Introduction to Metabolism

Glucose Catabolism

Glycogen Metabolism and Gluconeogenesis

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

DNA Replication, repair and Recombination

Transcription and Rna Processing

Protein Synthesis

Filters