How can a researcher visualize the DNA fragments separated in an electrophoresis gel?
A)using a labeled probe with a sequence complementary to the desired DNA fragment
B)staining with ethidium bromide
C)staining with potassium chloride
D)using labeled antibodies
E)staining with Coomassie Blue

Question

Quizplus · Accepted Answer

Staining with ethidium bromide is the most common method used to visualize DNA fragments in an electrophoresis gel. Ethidium bromide intercalates between the bases of the DNA molecule and fluoresces under UV light, allowing the researcher to see the fragments.

How Can a Researcher Visualize the DNA Fragments Separated in an Electrophoresis