
Gel Electrophoresis Applications
Grade 14 · Science · 50 min
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Learning Objective
I can describe how gel electrophoresis is used in DNA fingerprinting and disease diagnosis.
- 1
Gel electrophoresis separates molecules, especially DNA, based on their size and electrical charge.
- 2
Restriction enzymes are used to cut DNA into smaller pieces at specific sequences, creating fragments that can be compared using gel electrophoresis.
- 3
DNA fingerprinting uses gel electrophoresis to compare DNA samples from different sources, such as crime scenes or family members, to identify potential matches or relationships.

