Q.

How are DNA fragments visualized after gel electrophoresis?

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a

By adding alcohol to the gel.

b

By heating the gel.

c

By staining with ethidium bromide and exposure to UV radiation

d

By exposing the gel to sunlight.

answer is B.

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Detailed Solution

The DNA fragments staine with ethidium bromide are  visualized under UV irradiaiton as orange colored bands after gel electrophoresis

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How are DNA fragments visualized after gel electrophoresis?