MW Markers for RNA gels...

[Paul E. Ulanch]

If you are looking at transcripts that will be small, try Ambion's Century 
Markers kit.  It makes a ladder of 100, 200, 300, 400, and 500 bases long.  I 
use it currently for my in vitro transcription assays and I get great results 
estimating my sizes.

I am in n oway affiliated with Ambion, this is only my own experience with 
their product.  Typical disclaimer...
Paul "Goose" Ulanch

Dept. Biochem/Biophys
Texas A&M University
College Station, TX   77843-2128
(409) 847-9379
PULANCH at bioch.tamu.edu