
Gel Electrophoresis Basics
Grade 14 · Science · 50 min
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Learning Objective
I can describe the principles of gel electrophoresis.
- 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.

