Separating PCR products on agarose gel with similar bp length

umwong25 from via (by umwong25 from
Fri Dec 4 16:17:08 EST 2009


I am trying to separate 745bp, 646bp, and 655bp fragments on an  
agarose gel. I've separated the 745bp fragment but the other two  
fragments are not separating on a 2.5% agarose gel, running at 55V for  
3.5 hours. I also want a crisp band because I am planning to cut these  
fragments out and extract the DNA for sequencing. Any suggestions?

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