MediumNEET 2026
+4 / -1
Which of the following statements are correct with respect to DNA separation, isolation and visualization?
A
The cutting of DNA is done by molecular scissors.
B
The DNA fragments separate according to their size in an agarose gel, upon electrophoresis.
C
The separated DNA fragments can be seen without staining when exposed to UV light.
D
The separated DNA fragments, when stained with ethidium bromide, can be seen in visible light.
Explanation
Restriction endonucleases act as molecular scissors to cut DNA. DNA fragments are separated by agarose gel electrophoresis based on size. DNA is visualized only after staining with ethidium bromide under UV light, not in visible light.
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