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carpet in gels for PCR products - (Jul/19/2012 )

What is meant with a "carpet" in gels for PCR products (well at least I think a phenomenon in gels is meant )?
You can find it here as the last point: PCR tips and tricks
Thanks for any help.


I think it just means a uniform smear at no particular size.
I've not seen the term "carpet" used before but from the context I think that's what they mean.


thanks, and yes I imagined something similar but never had this in my PCRs so far...and well I'd call it too intense background perhaps (though that is not related to any products)