Interpreting Gel Electrophoresis
Grade 14 ¡ Science ¡ 50 min
What's Included
Learning Objective
I can interpret gel electrophoresis results to draw conclusions about DNA samples.
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 are used to cut DNA into fragments at specific sequences, and these fragments are then loaded into the wells of the gel.
- 3
DNA bands can be compared to a DNA ladder, which contains fragments of known sizes, to estimate the size of unknown DNA fragments and determine relatedness between samples.
Practice Questions
11 questions ¡ Multiple choice & Short answer
Exit Ticket
Quick comprehension check
âA gel electrophoresis is run on four DNA samples. Sample 1, Sample 2, and Sample 3 are from different individuals. Sample 4 is a DNA ladder with known fragment sizes. After running the gel, the banding patterns for Samples 1 and 3 appear most similar. What can you conclude about the relationship between the individuals who provided Sample 1 and Sample 3?â
Complete Lesson Package
Get all 3 ready-to-use resources:
