Lac Operon G12

Lac Operon G12

12th Grade - University

6 Qs

quiz-placeholder

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Lac Operon G12

Lac Operon G12

Assessment

Quiz

Biology

12th Grade - University

Medium

Created by

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Used 2+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the lac operon model the genes within the operon will be expressed if:
lactose is absent in the cell
glucose is present in the cell
lactose is present in the cell

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following is not a structural gene?

lac z

lac y

lac a

lac I

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the stretch of DNA where RNA polymerase binds?
operator
promoter
enhancer
origin

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A protein that binds to the operator and blocks the RNA polymerase
regulator
repressor
activator
corepressor

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
Operons are found in the cells of which of the following types of organisms?
prokaryotes (bacteria)
eukaryotes (plant and animals)
animals only
viruses

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the role of operons in prokaryote gene expression?
It makes the genes prokaryotes be turned on
It accounts for the regulation of gene activity in response to the needs of the cells
To make DNA for the gene
To make the gene turn of and off