What is meant by an operon in DNA?
Mini Quiz 4: Lac operon

Quiz
•
Biology
•
12th Grade
•
Easy
DELIA Moe
Used 2+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A collection of genes that perform the same function
A functioning unit of DNA containing a cluster of genes controlled by a single regulatory signal or promoter
A region on DNA which can affect the whole organism
A process where genes in an organism can affect other genes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The lac operon is found in ___ and the proteins produced are involved in metabolism of ____.
human colon cells ; glucose
fungi ; galactose
plants ; starch
bacteria ; lactose
3.
DRAG AND DROP QUESTION
1 min • 1 pt
In the presence of lactose, the lac operon will be switched (a) , (b) of structural genes will be transcribed and the (c) will be produced.
4.
REORDER QUESTION
1 min • 1 pt
Reorder the following
lacI gene is transcribed and translated into repressor protein.
RNA polymerase is unable to bind to promoter.
In the absence of lactose, repressor protein binds to operator.
No transcription of structural genes occur, no enzymes are produced.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements are FALSE?
In the presence of lactose, lac operon is switched on.
Lactose will convert into allolactose before binding to repressor.
Enzymes beta-galactosidase, permease & transacetylase are not produced in the presence of lactose.
In the presence of lactose, RNA polymerase can bind to promoter of lac operon.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the lac operon if the lacI gene is mutated?
Repressor protein may be non-functional.
Structural genes cannot be transcribed.
RNA polymerase cannot bind to promoter.
It does not affect the lac operon.
Similar Resources on Wayground
10 questions
Lactose Operon

Quiz
•
9th - 12th Grade
5 questions
8.6 Quizizz: Gene Expression and Regulation

Quiz
•
9th - 12th Grade
5 questions
Gene Regulation

Quiz
•
9th - 12th Grade
7 questions
Gene Control

Quiz
•
12th Grade
10 questions
Understanding the Lac Operon

Quiz
•
12th Grade
10 questions
Regulation of lac operon

Quiz
•
12th Grade
10 questions
12.1 - RNA(20pts.)

Quiz
•
9th - 12th Grade
10 questions
Operon (Lac Operon)

Quiz
•
9th - 12th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade