
Section 14.3 Quiz
Passage
•
Biology
•
10th Grade
•
Practice Problem
•
Hard
Jason Anderson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a homeobox gene?
A gene that codes for transcription factors
A type of RNA
A cellular organelle
A protein
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does an operator play in gene expression?
It initiates transcription
It binds to a repressor protein
It codes for proteins
It is a type of RNA.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a part of gene regulation?
Operon
Operator
Differentiation
Mitochondria
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is true about E. coli?
It has less than 1000 genes
It has a genetic library of more than 4000 genes
It cannot regulate its genes
It does not have operons.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the repressor in the Lac Operon?
To bind to lactose
To bind to the operator and block transcription
To bind to the promoter
To enhance transcription.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of lactose binding to the repressor in the Lac Operon?
Transcription is blocked
The repressor binds to the operator
The repressor is released and transcription occurs
RNA polymerase is inhibited.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is lactose composed of?
Glucose and fructose
Galactose and glucose
Sucrose and glucose
Galactose and fructose
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