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GN 311 MODULE 4 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

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GN 311 MODULE 4 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 Determine the outcome for the lac operon genotype shown below: I+P+O+Z+Y- Assume lactose is present. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Only functional beta-galactosidase is produced. Functional permease is NOT produced. An alteration in the DNA from an CG base pair to a TA base pair is called a ___. Select one: -Transition -Transversion - Answers Transition Which of the following mutations changes a codon that specifies an amino acid into one that terminates translation? -Nonsense -Missense -Silent -Reverse -Neutral - Answers Nonsense Which repair mechanism(s) involve(s) the removal of a single nucleotide? Select one or more: -Base excision repair -Nucleotide excision repair -Mismatch repair -Proofreading repair - Answers -Base excision repair -proofreading repair Determine the outcome for the lac operon genotype shown below: I+P-OcZ+Y+ Assume lactose is present. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. Determine the outcome for the lac operon genotype shown below: I+P-O+Z-Y-/I-P+O+Z+Y- Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. Determine the outcome for the lac operon genotype shown below: I+P-OcZ+Y-/I-P+O+Z+Y- Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. A mutation occurs in a transcription factor gene that prevents the small (effector) molecule from binding to the transcription factor protein. In which type(s) of gene regulation would this mutation result in constitutive expression of the structural gene? Select one or more: -positive inducible -negative repressible -positive repressible -negative inducible - Answers -negative repressible -positive repressible Determine the outcome for the lac operon genotype shown below: I-P+O+Z+Y- Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Only functional beta-galactosidase is produced. Functional permease is NOT produced. Determine the outcome for the lac operon genotype shown below: IsP+OcZ-Y+ Assume lactose is present. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Only functional permease is produced. Functional beta-galactosidase is NOT produced. Determine the outcome for the lac operon genotype shown below: I+P+OcZ+Y- Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Only functional beta-galactosidase is produced. Functional permease is NOT produced. Determine the outcome for the lac operon genotype shown below: I-P+OcZ-Y+/I+P+O+Z+Y- Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Only functional permease is produced. Functional beta-galactosidase is NOT produced. Select the type(s) of prokaryotic regulation that fit(s) the description below:Transcription occurs with high levels of the small molecule (effector). Select one or more: -Positive Inducible -Positive Repressible -Negative Inducible -Negative Repressible - Answers -Positive Inducible -Negative Inducible Determine the outcome for the lac operon genotype shown below: I-P+OcZ+Y+ Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase and functional permease are produced. Determine the outcome for the lac operon genotype shown below: I+P-OcZ+Y+ Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. Determine the outcome for the lac operon genotype shown below: I-P+O+Z+Y+ Assume lactose is present. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase and functional permease are produced. Determine the outcome for the lac operon genotype shown below: I+P+O+Z+Y+ Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. Determine the outcome for the lac operon genotype shown below: I+P-OcZ+Y+/IsP+OcZ+Y+ Assume lactose is present. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase and functional permease are produced. Determine the outcome for the lac operon genotype shown below: I+P-OcZ+Y+/IsP+OcZ+Y+ Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase and functional permease are produced. Determine the outcome for the lac operon genotype shown below: I+P+O+Z+Y-/IsP+O+Z+Y+ Assume lactose is absent. Select one: -Functional beta-galactosidase and functional permease are produced. -Only functional beta-galactosidase is produced. Functional permease is NOT produced. -Only functional permease is produced. Functional beta-galactosidase is NOT produced. -Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. Select the type(s) of prokaryotic regulation that fit(s) the description below: Binding of the regulator gene product to the DNA is necessary to shut off transcription. Select one or more: -Positive Inducible -Positive Repressible -Negative Inducible -Negative Repressible - Answers -Negative Inducible -Negative Repressible Determine the outcome for the lac operon genotype shown below: I-P+OcZ+Y+

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Institution
GN 311
Course
GN 311

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GN 311 MODULE 4 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

Determine the outcome for the lac operon genotype shown below:
I+P+O+Z+Y-
Assume lactose is present.

Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Only functional beta-galactosidase is produced. Functional permease is NOT produced.
An alteration in the DNA from an CG base pair to a TA base pair is called a ___.
Select one:
-Transition
-Transversion - Answers Transition
Which of the following mutations changes a codon that specifies an amino acid into one that
terminates translation?
-Nonsense
-Missense
-Silent
-Reverse
-Neutral - Answers Nonsense
Which repair mechanism(s) involve(s) the removal of a single nucleotide?
Select one or more:
-Base excision repair
-Nucleotide excision repair
-Mismatch repair
-Proofreading repair - Answers -Base excision repair
-proofreading repair
Determine the outcome for the lac operon genotype shown below:
I+P-OcZ+Y+

Assume lactose is present.

Select one:

-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Functional beta-galactosidase is NOT produced. Functional permease is NOT produced.
Determine the outcome for the lac operon genotype shown below:
I+P-O+Z-Y-/I-P+O+Z+Y-

Assume lactose is absent.

Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Functional beta-galactosidase is NOT produced. Functional permease is NOT produced.
Determine the outcome for the lac operon genotype shown below:
I+P-OcZ+Y-/I-P+O+Z+Y-

Assume lactose is absent.

, Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Functional beta-galactosidase is NOT produced. Functional permease is NOT produced.
A mutation occurs in a transcription factor gene that prevents the small (effector) molecule from
binding to the transcription factor protein. In which type(s) of gene regulation would this mutation
result in constitutive expression of the structural gene?
Select one or more:
-positive inducible
-negative repressible
-positive repressible
-negative inducible - Answers -negative repressible
-positive repressible
Determine the outcome for the lac operon genotype shown below:
I-P+O+Z+Y-

Assume lactose is absent.

Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Only functional beta-galactosidase is produced. Functional permease is NOT produced.
Determine the outcome for the lac operon genotype shown below:
IsP+OcZ-Y+

Assume lactose is present.

Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Only functional permease is produced. Functional beta-galactosidase is NOT produced.
Determine the outcome for the lac operon genotype shown below:
I+P+OcZ+Y-

Assume lactose is absent.

Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
-Only functional permease is produced. Functional beta-galactosidase is NOT produced.
-Functional beta-galactosidase is NOT produced. Functional permease is NOT produced. - Answers
Only functional beta-galactosidase is produced. Functional permease is NOT produced.
Determine the outcome for the lac operon genotype shown below:
I-P+OcZ-Y+/I+P+O+Z+Y-

Assume lactose is absent.

Select one:
-Functional beta-galactosidase and functional permease are produced.
-Only functional beta-galactosidase is produced. Functional permease is NOT produced.
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