Gene Regulation and Operon Quiz
Authored by Esme Ruezga
Biology
12th Grade
NGSS covered
Used 40+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of gene regulation in cells?
To regulate the production of carbohydrates
To produce more DNA in the body cells
To increase the rate of translation
To determine which genes will be turned on and off
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of RNA polymerase in gene regulation?
To increase the rate of DNA replication
To start transcription
To regulate the production of lipids
To decrease the rate of translation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of a promoter in gene regulation?
It is a sequence of DNA where mRNA can be made
It is a gene that codes for producing the repressor
It is a part of the DNA where a repressor can bind to block RNA polymerase
It is a sequence of DNA where RNA polymerase can bind to start transcription
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the repressor binds to the operator in an operon?
It increases the rate of transcription
It blocks RNA polymerase and prevents mRNA production
It decreases the rate of translation
It regulates the production of proteins
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the Lac Operon in bacteria?
To decrease the rate of translation
To produce enzymes that help in breaking down lactose sugar
To regulate the production of carbohydrates
To increase the rate of DNA replication
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the repressor in an operon?
To regulate the production of lipids
To decrease the rate of translation
To increase the rate of transcription
To block RNA polymerase when lactose is not present
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when lactose binds to the repressor in an operon?
It decreases the rate of translation
It increases the rate of transcription
It changes the repressor's conformation and prevents it from binding to the operator
It regulates the production of proteins
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