Agarose Gel Preparation

Materials

• 1X TAE

• Agarose

• Gel Red

• DNA samples

• 6X loading dye

• Nuclease free water

Prepare 1.2% agarose gel for small fragments and 3% agarose gel for large fragments

• Mix 50 mL 1X TAE and 0.6 g (1.2%) or 1.5 g (3%) agarose

• Melt in microwave until agarose has melted (about 50 seconds)

• Add 1.3 μL (1.2%) or 1.5 μL (3%) Gel Red

• Pour solution into agarose gel mold with comb

• Let set for 20 minutes or until solid

• Place gel in 1X TAE and remove comb

• Load samples of 200 ng (or 2 μL) DNA mixed with 2 μL 6X loading dye and nuclease free water up to 12 μL

• Run gel at 100-120 Volts for 40-50 minutes (1.2%) or 80 Volts for 2 hours (3%)

• Take a picture of the gel at the UV detector

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