Gene Regulation
Quiz
•
Other, Biology
•
11th - 12th Grade
•
Hard
Susan Sokolowsky
Used 1K+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
All the genes in both a prokaryotic cell and a eukaryotic cell are expressed at the same time.
True
False
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prokaryotes regulate gene expression primarily
in order to maintain homeostasis
in response to changing environmental conditions
during development as cells specialize
Prokaryotes do not regulate gene expression. All genes are always on.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One way to regulate the expression of a gene is to control the formation of mRNA. This is called ___ control.
transcriptional
translational
post-transcriptional
post-translational
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In order for a gene to be expressed, ___ must bind to the gene's ___, a specific sequence of nucleotides at one end of the gene, thus initiating transcription.
DNA polymerase, promotor
DNA polymerase, operator
RNA polymerase, promotor
RNA polymerase, operator
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An operon is
a genetic on/off switch in prokaryotes
a genetic on/off switch in eukaryotes
a group of related genes and the associated gene switches in prokaryotes
a group of related genes and the associated gene switches in eukaryotes
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Genes can be shut off (not expressed) when a ___ binds to the ____.
activator, operator
repressor, operator
corepressor, operator
repressor, promotor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What molecule can remove a repressor protein from the operator?
a corepressor
an inducer
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