Identify the incorrect statement in context to gel electrophoresis.

Easy

A

DNA fragments move towards the anode in electrophoresis.
B

Smaller DNA fragments diffuse more rapidly through the gel than larger ones.
C

The separated DNA fragments can be visualized by exposing them directly to UV radiation.
D

Electrophoresis is used to separate different fragments of DNA on the basis of their length.

Solution

The separated DNA fragments can be visualized only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation (you cannot see pure DNA fragments in the visible light and without staining).

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