
Gel Electrophoresis Basics
Grade 14 · Science · 50 min
What's Included
Learning Objective
I can describe the principles of gel electrophoresis.
Warm-Up Video
Amoeba Sisters · 7:55
Gel Electrophoresis
Guided Notes
3 key concepts
- 1
Gel electrophoresis separates molecules, especially DNA, based on their size and charge.
- 2
Restriction enzymes cut DNA into fragments, which are then loaded into wells in the agarose gel.
- 3
DNA fragments move towards the positive end of the gel, with shorter fragments moving faster and farther than longer fragments.
Practice Questions
11 questions · Multiple choice & Short answer & Fill in the blank
Exit Ticket
Quick comprehension check
“Describe how gel electrophoresis separates DNA fragments.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts


