In agarose gel electrophoresis, DNA is visualized by ____.
A) staining the gel with an agarose-binding dye so the gel, but not the DNA bands, fluoresces under UV light
B) staining the DNA with a DNA-binding dye that fluoresces under natural light
C) staining the DNA with X-gal so that the DNA bands appear blue
D) staining the gel with a DNA-binding dye that fluoresces under UV light
E) staining the gel with a DNA-binding dye that fluoresces under natural light

Question

Quizplus · Accepted Answer

Staining the gel with a DNA-binding dye that fluoresces under UV light is the common method used to visualize DNA in agarose gel electrophoresis. The dye binds to the DNA, and when exposed to UV light, the DNA-dye complex fluoresces, allowing visualization of the DNA bands.

In Agarose Gel Electrophoresis, DNA Is Visualized by ____