Gene Regulation
Interactive Video
•
Biology, Chemistry, Other
•
11th Grade - University
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What organism is used as an example to explain gene regulation in the introduction?
Yeast
E. coli
Human cells
Fruit fly
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a regulatory gene responsible for?
Synthesizing lipids
Breaking down carbohydrates
Regulating another gene
Producing proteins directly
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of positive control in bacteria?
RNA polymerase
TATA box
lac operon
trp operon
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the repressor in the lac operon when lactose is present?
It degrades the RNA polymerase
It synthesizes more lactose
It changes shape and detaches from the operator
It binds more tightly to the operator
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the trp operon, what occurs when tryptophan is abundant?
The operon is turned on
The operon is turned off
RNA polymerase binds to the promoter
The repressor detaches from the operator
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between bacterial and eukaryotic gene regulation?
Eukaryotes use operons
Bacteria use transcription factors
Eukaryotes have more complex control mechanisms
Bacteria have junk DNA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do transcription factors play in eukaryotic gene regulation?
They degrade mRNA
They assist in RNA polymerase binding
They act as enzymes
They synthesize proteins
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