Regulation of lac operon

Regulation of lac operon

12th Grade

10 Qs

quiz-placeholder

Similar activities

lac operon

lac operon

11th - 12th Grade

10 Qs

Regulation

Regulation

11th - 12th Grade

15 Qs

Gene Regulation and Biotechnology

Gene Regulation and Biotechnology

11th - 12th Grade

15 Qs

AP Bio Operons

AP Bio Operons

11th - 12th Grade

15 Qs

AP Bio Insta-Review Topic 6.5: Regulation of Gene Expression

AP Bio Insta-Review Topic 6.5: Regulation of Gene Expression

9th - 12th Grade

13 Qs

Gene Expression Quiz

Gene Expression Quiz

10th - 12th Grade

15 Qs

Lac Operon HB 24/25

Lac Operon HB 24/25

11th - 12th Grade

15 Qs

MOLECULAR BASIS OF INHERITANCE - Quiz 14

MOLECULAR BASIS OF INHERITANCE - Quiz 14

12th Grade

10 Qs

Regulation of lac operon

Regulation of lac operon

Assessment

Quiz

Biology

12th Grade

Hard

Created by

Siddhanta Chettri

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the lac operon?

The lac operon is a genetic system in bacteria that controls the expression of genes involved in lactose metabolism.

The lac operon is a type of protein found in plants.

The lac operon is a structure in animal cells.

The lac operon is a type of virus that infects bacteria.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three structural genes in the lac operon?

lacZ, lacY, lacA

lacB

lacD

lacC

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gene in the lac operon encodes for the enzyme beta-galactosidase?

lacZ

lacY

lacA

lacW

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of beta-galactosidase in the lac operon?

Promotes the synthesis of lactose

Cleaves lactose into glucose and galactose

Inhibits the breakdown of lactose

Converts glucose into lactose

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the lac repressor in the regulation of the lac operon?

The lac repressor is only active when lactose is absent.

The lac repressor is involved in translation of the lac operon.

The lac repressor enhances transcription in the presence of lactose.

The lac repressor acts as a negative regulator by blocking transcription in the absence of lactose.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the inducer of the lac operon?

lactose

fructose

sucrose

glucose

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the inducer affect the lac repressor?

The inducer degrades the lac repressor.

The inducer enhances the binding of the lac repressor to the lac operator.

The inducer prevents the lac repressor from binding to the lac operator.

The inducer has no effect on the lac repressor.

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?