DNA ladder

umwong25 from cc.umanitoba.ca via methods%40net.bio.net (by umwong25 from cc.umanitoba.ca)
Wed Mar 3 17:12:17 EST 2010

Hi everyone,

I recently ran a 2-8% gradient polyacrylamide gel. The 1kb Plus DNA  
ladder had multiple bands. Does anyone know what might have caused  
this and how to prevent it? I suspect that I might be caused by the  
freeze thaw cycle. Also, some of my bands of my PCR samples were  
slanted using a pre-cast gel. How do you prevent that? (I washed out  
the wells thoroughly before use) Thanks.

-Graduate student

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