Lac Operon
Authored by Lisa Thompson
Science
11th Grade
NGSS covered
Used 2+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the lac operon the inducer is
allolactose
glucose
galactose
all of the above
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The lac operon is an example of an inducible operon. Which of the following describes the process that occurs when lactose is present?
The lactose binds to the repressor which inactivates it and the repressor binds to the operator to turn translation on.
The lactose binds to the repressor which activates it and the repressor releases from the operator to turn translation on.
The lactose binds to the repressor which inactivates it and the repressor releases from the operator to turn translation on.
The lactose binds to the repressor which activates it and the repressor binds to the operator to turn translation on.
Tags
NGSS.HS-LS3-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A protein that binds to the operator and blocks the RNA polymerase
regulator
repressor
activator
corepressor
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Operons are found in which of the following organisms?
Bacteria(prokaryotes)
plants and animals(eukaryotes)
only animals
virsuses
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An operon consists of all the the following EXCEPT
operator
promoter
regulatory gene
genes of the operon
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is 1 in the diagram?
RNA polymerase
Inducer
Repressor
Operator
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is 4 in the diagram?
RNA polymerase
Inducer
Repressor
Operator
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