1. Gel Electrophoresis
Ellie Landis

2. What is Gel Electrophoresis?
Gel electrophoresis is a
process that separates
fragments of DNA
based on their sizes.

3. Step 1
Place DNA into tubes
DNA can come
from tissue or
body fluid, such as
cheek
cells, blood, skin, a
nd hair.

4. Step 2
Polymerase Chain Reaction

5. Step 3
Place restriction enzymes into DNA
The restriction enzymes
cut the DNA into different
sizes according to it’s
sequence

6. Step 4
Dye DNA and place into Gel

7. Step 5
Run electric current through gel
DNA is negatively
charged so it will move
towards the positively
charged end of the gel

8. Step 6
Smaller pieces of DNA travel farther than Larger
pieces of DNA