Which of the Following Is True Regarding Agarose Gel Electrophoresis

question 15

Multiple Choice

Which of the following is true regarding agarose gel electrophoresis of DNA?

• A)The loading dye usually contains a marker dye and a heavy molecule such as glycerol.
• B)In general, good separation of DNA fragments in the 1000-20,000 base pair size range can be achieved.
• C)The usual buffer used is potassium phosphate at a pH of 7.2.
• D)The usual stain to visualize the DNA is propidium iodide.

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