What is the main purpose of gel electrophoresis?
Electrophoresis Quiz

Quiz
•
Biology
•
12th Grade
•
Easy
Noel Tiver
Used 4+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To increase the size of DNA fragments
To observe the color of DNA fragments
To separate DNA fragments based on size
To duplicate DNA fragments
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following factors does NOT affect the electrophoretic mobility of DNA fragments? (NIC)
The length of the DNA fragment
The agarose concentration in the gel
The color of the DNA stain
The voltage applied during electrophoresis
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In gel electrophoresis, what causes DNA fragments to move through the gel?
Gravity
Magnetic field
Electric field
Thermal energy
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the role of the buffer solution in gel electrophoresis? (NIC)
To make the DNA fragments visible
To provide nutrients to the DNA fragments
To maintain a stable pH
To decrease the temperature of the gel
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the principle behind the separation of DNA fragments in gel electrophoresis?
Larger fragments move faster than smaller ones
Smaller fragments move faster than larger ones
All fragments move at the same speed
Fragments do not move
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does the charge of DNA fragments affect their movement in gel electrophoresis?
Positively charged fragments move towards the cathode (-)
Negatively charged fragments move towards the anode (+)
Positively charged fragments move towards the anode (+)
DNA fragments are not charged
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the purpose of using a ladder or marker in gel electrophoresis?
To increase the voltage of the electric field
To serve as a reference for estimating the size of DNA fragments
To color the DNA fragments
To stabilize the gel
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