Reasons for gel samples running unevenly?

Paul Wary paul_wary at
Wed Aug 14 12:15:22 EST 2002

What reasons can there be for gel samples running unevenly?
For example, the same DNA marker on the left of my gel runs
differently on the right, i.e. the corresponding bands are not exactly
at the same places.
With many samples next to each other I can also see it by the
bromophenol blue band, which is not a straight line as it is supposed
to be.


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