BIOLOGY 1201 EXAM 3 2026 PRACTICE TEST
PACK COMPLETE SOLUTIONS VERIFIED
◉ How are genes coordinately controlled in eukaryotic cells?
Coordinately controlled genes in eukaryotic cells share a set of
control elements.
Coordinately controlled genes in eukaryotic cells are activated by the
same chemical signals.
Coordinately controlled genes in eukaryotic cells are located
together on the same chromosome..
Answer: Coordinately controlled genes in eukaryotic cells share a set
of control elements.
Coordinately controlled genes in eukaryotic cells are activated by the
same chemical signals.
(In eukaryotes, specific transcription factors bind to control
elements, promoting transcription of coordinately controlled genes,
even if the genes are on separate chromosomes. Read about
coordinately controlled genes in eukaryotes.)
,◉ The operon model of the regulation of gene expression in bacteria
was proposed by _____.
Watson and Crick
Franklin
Darwin
Jacob and Monod
Mendel.
Answer: Jacob and Monod
In 1961 Jacob and Monod proposed the operon model of gene
regulation.
◉ Which of these is NOT a component of the lac operon?
lactose-utilization genes only
promoter only
regulatory gene only
operator only
promoter and operator.
Answer: regulatory gene only
,The regulatory gene, while not a part of the operon, plays a role in
regulating the expression of the genes of the operon.
◉ Regulatory proteins bind to _____.
the operator
the lactose-utilization genes
the regulatory gene
RNA polymerase
transcription factors.
Answer: the operator
Transcription is inhibited when a regulatory protein binds to the lac
operon operator.
◉ In the presence of a regulatory protein the lac operon is _____.
transcribed
not transcribed
transcribed at a faster than usual rate
is turned on
, either transcribed or not transcribed.
Answer: not transcribed
The regulatory protein of the lac operon is a repressor.
◉ Which of these is a regulatory gene?.
Answer: D .
The regulatory gene is not a part of the operon.
◉ Based on the figure below leading strand replication would occur
at locations?.
Answer: II and III
◉ During transcription the mRNA strand is produced anti-parallel to
the template DNA strand..
Answer: true
◉ Transcribe the DNA sequence shown below.
5' TTAAGGCC
PACK COMPLETE SOLUTIONS VERIFIED
◉ How are genes coordinately controlled in eukaryotic cells?
Coordinately controlled genes in eukaryotic cells share a set of
control elements.
Coordinately controlled genes in eukaryotic cells are activated by the
same chemical signals.
Coordinately controlled genes in eukaryotic cells are located
together on the same chromosome..
Answer: Coordinately controlled genes in eukaryotic cells share a set
of control elements.
Coordinately controlled genes in eukaryotic cells are activated by the
same chemical signals.
(In eukaryotes, specific transcription factors bind to control
elements, promoting transcription of coordinately controlled genes,
even if the genes are on separate chromosomes. Read about
coordinately controlled genes in eukaryotes.)
,◉ The operon model of the regulation of gene expression in bacteria
was proposed by _____.
Watson and Crick
Franklin
Darwin
Jacob and Monod
Mendel.
Answer: Jacob and Monod
In 1961 Jacob and Monod proposed the operon model of gene
regulation.
◉ Which of these is NOT a component of the lac operon?
lactose-utilization genes only
promoter only
regulatory gene only
operator only
promoter and operator.
Answer: regulatory gene only
,The regulatory gene, while not a part of the operon, plays a role in
regulating the expression of the genes of the operon.
◉ Regulatory proteins bind to _____.
the operator
the lactose-utilization genes
the regulatory gene
RNA polymerase
transcription factors.
Answer: the operator
Transcription is inhibited when a regulatory protein binds to the lac
operon operator.
◉ In the presence of a regulatory protein the lac operon is _____.
transcribed
not transcribed
transcribed at a faster than usual rate
is turned on
, either transcribed or not transcribed.
Answer: not transcribed
The regulatory protein of the lac operon is a repressor.
◉ Which of these is a regulatory gene?.
Answer: D .
The regulatory gene is not a part of the operon.
◉ Based on the figure below leading strand replication would occur
at locations?.
Answer: II and III
◉ During transcription the mRNA strand is produced anti-parallel to
the template DNA strand..
Answer: true
◉ Transcribe the DNA sequence shown below.
5' TTAAGGCC
