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A mixture of fragmented DNA was electrop...

A mixture of fragmented DNA was electrophoresed in an agarose gel. After staining the gel with ethidium bromide, no DNA bands were observed. What could be the reason?

Text Solution

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(i) Due to contamination of DNA with exonuclease and endonuclease, DNA can be degraded, when loaded on gel.
(ii) Wrong fitting of electrodes.
(iii) Non-visibility of DNA due to non addition of ethidium bromide.
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