The band can only be seen under UV light, after staining with the_______.
Ethidium bromide
Mercury
EDTA
Both B and C
To identify fragments, the gel is stained with the intercalating dye ethidium bromide, followed by visualization under UV light. Ethidium bromide stains DNA in a concentration-dependent way, so the more DNA in a band on the gel, the more intensely it stains.
After staining the DNA with ethidium bromide, it is exposed to UV radiation. DNA is then visible as orange stripes.
Option 1 is the correct answer.