Plasmid electrophoresis...

[Edouard Lauzier]

I put on a agarose gel a solution of plasmid DNA for the first time lately...

I was wondering about the structural form of the three signals I get after
staining with ethidium bromide.  

I guess one's the supercoiled, another's is the plasmid under a loose form
but the last one ??

Thanks in advance
-- 
Edouard Lauzier, B.Sc.                           elauzier at fse.ulaval.ca
Physical Activity Science Laboratory
(Laval University)  G1K 7P4
CANADA