Electrophoresis lesson and Lab

Electrophoresis Info/Lab

This activities Learning Targets

• Understand the basics of how Gel electrophoresis works.

• Identify the many uses of Gel Electrophoresis.

• Interpret Results of Gel Electrophoresis

Principles of Gel Electrophoresis

• Gel Electrophoresis: a technique used to separate DNA fragments based on their size and charge
• Principle: DNA is loaded onto a gel matrix and an electric field is applied, causing DNA fragments to migrate towards the positive electrode
• Gel Matrix: a porous substance that slows down DNA fragments based on their size
• Separation: smaller fragments move faster and travel further, while larger fragments move slower and stay closer to the loading well

Gel Electrophoresis:

Trivia: Gel electrophoresis is a technique used to separate DNA fragments based on their size and charge. It is commonly used in forensic science and genetic research. The process involves loading DNA fragments onto a gel matrix and applying an electric field, causing the fragments to migrate through the gel. Smaller fragments move faster and travel further, resulting in distinct bands that can be analyzed and studied.

Setting Up Gel Electrophoresis

• Step 1: Prepare the gel by mixing agarose powder with buffer solution and heating it.
• Step 2: Pour the gel mixture into a gel tray and insert a comb to create wells.
• Step 3: Allow the gel to solidify.
• Step 4: Prepare DNA samples by mixing them with loading dye.
• Step 5: Load the DNA samples into the wells.
• Step 6: Connect the gel tray to the power supply and run the gel.
• Step 7: Stain the gel to visualize the DNA bands.

follow the steps as shown in PLTW!

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