#gel electrophoresis

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Can anyone help me understand it? I am not able to understand why +/- signs are written above the gel profile? And can anyone help me with the hint to the solution?

#gel electrophoresis #molecular biology #biotechnology #science #gradblr #studyblr 
Hyphenated@ipitara-studyblr
Sun, 13 Sep 2020 00:23:41
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